手持式生物检材发现仪（Polilight Flare® Plus 2 高功率多波段勘查光源）刑侦勘查与反恐应急应用介绍
作者：毕思特科技 来源：毕思特科技 浏览数：14 发布时间：2026/4/8 10:24:23
手持式生物检材发现仪（Polilight Flare® Plus 2 高功率多波段勘查光源）刑侦勘查与反恐应急应用介绍
手持式生物检材发现仪（Polilight Flare® Plus 2 高功率多波段勘查光源），是严格遵循《法庭科学现场勘查光源技术要求》《公安机关刑事案件现场勘验检查规则》等国家与行业标准，基于全球一线刑侦实战需求研发的新一代高功率便携式多波段勘查光源，也是特警反恐防爆应急处置、犯罪现场勘查取证工作中的核心必备装备。本设备为电池供电的一体式集成化设计，在完整保留专业多波段勘查核心功能的基础上，实现了光照强度、电池续航、便携性的全方位跃升，可输出从紫外（365nm）到红外（850nm）全系列高纯度、高强度单色光波段，能够高效激发犯罪现场潜在生物斑迹、汗潜指纹、微量纤维等物证产生特征荧光或亮度反差，实现痕迹物证的无损、快速定位与识别。
设备凭借超高亮度输出、纯净窄带光谱、超长单次作业时长与人性化一体式设计，完美适配户外野外勘查、移动勤务作业、长时间现场勘验等多元化实战场景，是一线刑侦技术人员、特警执勤人员开展快速无损痕迹搜索、物证显现固定、应急安检筛查的理想专业装备，广泛应用于各级公安刑事技术部门、司法鉴定机构、特警反恐单位、重大活动安保执行单位。
技术原理
本设备核心基于光致发光效应与物质选择性光吸收原理工作，全程采用纯光学无损检测方式，无需对物证进行物理或化学预处理，不会破坏、污染原始物证与现场环境，完全符合刑事现场勘查 “先固定后提取、无损优先” 的核心作业原则，提取的物证影像具备完整的司法鉴定证据效力。
设备核心发光单元为多组高功率、窄带宽专用 LED 光源，搭配光学密度 OD6 级（10⁻⁶级别）的高性能带通滤光片，通过精密光学滤波技术，滤除所有波段外的杂散光，输出光谱范围极窄、纯度极高的单色光，有效杜绝杂散光造成的背景荧光干扰。当特定波长的高强度单色光照射到现场潜在痕迹时，基于光致发光效应，痕迹中的特定物质（如血液中的卟啉、汗潜指纹中的核黄素、纤维中的染料分子、体液中的有机成分）会吸收激发光的能量，发出波长更长的特征可见荧光；或基于选择性吸收原理，痕迹与承痕客体背景对特定波长光线的吸收、反射能力存在显著差异，从而形成肉眼可辨的亮度、颜色反差。
使用者通过佩戴与激发光波段匹配的专用防护观察眼镜，可过滤掉环境中的激发光杂散光，仅保留痕迹发出的特征荧光，从而在复杂背景环境下清晰观察到被增强、“点亮” 的潜在痕迹，实现对微量物证、潜隐痕迹的无损、快速定位与识别，同时可直接搭配相机完成痕迹影像的固定与提取。
核心功能与实战价值
三倍增强超高功率光输出，突破复杂环境勘查瓶颈
相较于前代产品，设备除紫外与紫光波段外，其余各波段光输出功率均提升至三倍，其中白光模式最高亮度可达 3300 流明，415nm 紫光波段输出功率高达 6500mW。超高功率的光强输出，可有效克服现场环境光、复杂背景光的干扰，哪怕是在白天户外、强光环境下，也能对微弱的潜隐痕迹实现高对比度的激发效果，彻底解决了传统勘查光源在非暗室环境下 “激发效果差、痕迹看不清” 的行业痛点。同时超高亮度白光模式可兼顾现场大范围搜索、远距离照明、物证拍照补光等多元化需求，实现 “一机多用”，大幅减轻一线人员的装备携带负担。
OD6 级高纯度窄带光谱，实现微量痕迹高对比度显现
设备采用 OD6 级（10⁻⁶级别）高性能带通滤光片，可有效滤除所有波段外的杂散光，输出的单色光光谱纯度极高，最大程度减少了背景杂散光造成的荧光干扰，让目标痕迹的特征荧光信号更加突出，哪怕是稀释数十倍的微量体液斑迹、承痕客体上的微弱汗潜指纹，也能形成清晰的反差效果。设备标准光束角为 5°，可形成中心与边缘亮度完全一致的均匀光斑，确保勘查区域光照均匀无死角，不会出现中心过曝、边缘昏暗的问题，保障痕迹观察与拍照固定的画面一致性；同时可通过选配专用滤光片拓宽光束角，适配现场大范围足迹搜索、大面积区域快速筛查的作业需求。
全功能智能人机交互，超长续航适配全天候野外勤务
设备配备多功能一体化拇指控制开关，集成一键开关机、无极亮度调节、爆闪模式、安全锁止、SOS 求救信号五大核心功能，单手握持即可完成所有操作，无需双手配合调试，完美适配现场勘查、应急处置时的单手操作需求，可解放另一只手完成拍照、记录、物证保护等同步工作。内置高容量 2450mAh 锂离子电池，在最大功率白光输出模式下可持续工作不低于 200 分钟，35% 低功率模式下续航时长可达 24 小时，完全满足一次完整的夜间现场勘查、全天候野外搜捕、长时间应急处置的勤务用电需求。每支设备配备独立专用电池，支持车载充电，同时具备充电状态实时指示与电池过放保护功能，彻底解决了野外勤务、无市电补给场景下的续航焦虑。
军工级坚固防护设计，适配极端环境应急处突需求
设备外壳采用含氟聚合物涂层工艺，具备优异的防污、防腐蚀、易清洁特性，现场勘查中沾染的污渍、体液可快速擦拭清洁，不会对设备造成腐蚀损伤。整机采用全密封防水设计，白光光源模式下防水深度可达 100 米，可在暴雨、积水、高湿、风沙等极端恶劣环境下稳定工作，完美适配野外山林、水域事故、暴雨天气等复杂现场的勘查与应急处置需求。设备整机长度仅 23 厘米，重量仅 700 克，较上一代产品减重 20%、长度缩短 16%，实现了超高功率与极致便携性的完美平衡，可轻松收纳于勘查包、战术背心口袋中，支持单兵随身携行，无负重压力。设备核心 LED 光源使用寿命极长，可满足超过 25 年的高强度专业使用需求，大幅降低了设备的维护与更换成本。
全波段无损勘查能力，覆盖全类型物证搜索显现需求
设备可输出紫外光、紫光、蓝光、蓝绿光、绿黄光、红光、白光、红外光八大核心波段，覆盖从 365nm 紫外到 850nm 红外的全光谱范围，可针对不同类型的物证、不同材质的承痕客体，灵活匹配最优激发波段，实现全类型痕迹物证的全覆盖搜索与显现。全程采用纯光学无损检测方式，无需对物证进行任何物理、化学预处理，不会破坏、污染原始物证，哪怕是后续需要进行实验室精密检验的微量生物检材，也不会造成任何损耗，完美适配现场初筛与实验室后续检验的全流程作业规范。
刑事侦查与反恐应急实战应用场景
本设备是刑事现场勘查、微量物证搜索、反恐防爆应急处置工作中的核心光学装备，其应用贯穿于现场初勘、物证搜索、痕迹固定、应急筛查全流程，核心实战应用场景包括六大方向：
现场生物斑迹快速无损定位
针对犯罪现场的潜隐、稀释、微量生物斑迹，可灵活匹配对应波段实现快速定位：使用 365nm 紫外光，可快速搜索现场潜隐、高度稀释的血迹；使用 415nm 紫光或 450nm 蓝光，可高效搜索精斑、唾液斑、尿液斑等体液残留。高亮度、高纯度的光源输出，使其在深色地毯、花纹织物、粗糙木质客体等复杂背景上的痕迹发现能力显著增强，哪怕是肉眼无法识别的微量、稀释生物斑迹，也能通过特征荧光清晰显现，为案件侦查提供关键的生物物证线索。
潜在汗潜指纹无处理快速显现
针对不同材质承痕客体表面的潜在汗潜指纹，可灵活选用 450nm 蓝光、505nm 蓝绿光、545nm 绿黄光进行定向照射，激发汗潜指纹残留物中的核黄素、氨基酸等有机成分产生特征荧光，无需进行粉末刷显、化学显现等任何预处理，即可实现对潜隐指纹的快速无损筛查与拍照固定，有效避免了传统显现方法对指纹痕迹的破坏与污染，同时可解决光滑客体、半透明客体、复杂背景客体上传统方法难以显现的疑难指纹提取难题。
微量物证与疑难痕迹精准搜索
利用 620nm 红光、850nm 红外光，可对深色纺织品上的纤维转移痕迹、现场地面的灰尘足迹、工具痕迹、油漆碎片、玻璃碎屑等微量物证进行精准检验与搜索，解决深色背景下微量物证肉眼难以发现的难题。3300 流明超高亮度白光模式，可提供极强的聚光照明，用于远距离目标观察、现场大范围常规痕迹搜索、现场整体照明与物证拍照补光，完美适配现场勘查的全流程照明与勘查需求。
可疑文件与证件真伪现场快速鉴别
通过不同波段的单色光定向照射，可快速检测文件中的涂抹遮盖字迹、消退字迹、不同墨水书写的添加改写痕迹、印章印文真伪，以及身份证、护照、票据等证件的伪造变造特征，无需实验室精密仪器，即可在现场完成文件、证件的初步快速鉴别，为案件侦查、证件核查提供实时技术支撑，广泛应用于经济案件侦查、出入境核查、治安盘查等场景。
反恐防爆与应急处突现场快速筛查
在涉恐涉爆案件、危险化学品泄露、突发公共安全事件的应急处置现场，可通过多波段光源对可疑包裹、可疑物品、车辆内饰、现场环境进行快速扫描，快速查找潜在的爆炸物残留、危险化学品痕迹、生物检材等关键物证，为现场排爆、风险排查、案件侦查提供实时线索，同时可通过爆闪模式实现现场警戒、人员驱离，通过 SOS 模式实现野外应急求救，完美适配反恐应急处突的多元化勤务需求。
重大活动安保与重点区域常态化巡检
可广泛应用于重大国际会议、体育赛事、节庆活动等重大活动安保，以及党政机关、核电设施、军工单位等重点要害场所的常态化巡检。可对场馆核心区域、隐蔽通道、重点防护部位进行常态化痕迹搜索与安全排查，快速发现可疑痕迹、异常物品与安全隐患，同时可用于治安卡点盘查、人员随身物品快速筛查，筑牢重大活动与重点场所的安全防控防线。
核心技术参数
输出波段范围：覆盖八大核心波段，具体包括紫外光 (UV) 365-385 nm、紫光 (Violet) 405-420 nm（峰值 415nm）、蓝光 (Blue) 435-465 nm（峰值 450nm）、蓝绿光 (Cyan) 485-515 nm（峰值 505nm）、绿光 / 黄光 (Green/Yellow) 530-560 nm（峰值 545nm）、红光 (Red) 615-635 nm（峰值 620nm）、白光 (White) 400-700 nm、红外光 (IR) 835-865 nm（峰值 850nm）。
光学性能：标准光束角 5°，光斑均匀无暗角；滤波纯度达 10⁻⁶（OD6 级）；可通过选配滤光片拓宽光束角，适配不同勘查场景需求。
光源性能：白光模式最高亮度 3300 流明，415nm 紫光波段输出功率 6500mW；LED 光源使用寿命长，可满足 25 年以上高强度专业使用需求。
电源与续航：内置 2450mAh 高容量锂离子电池，强白光模式续航不低于 200 分钟，35% 功率模式续航可达 24 小时；支持车载充电，具备充电状态实时指示与电池过放保护功能。
物理与防护特性：整机长度 23cm，重量 700g；外壳采用含氟聚合物涂层工艺，具备优异的防污、防腐蚀性能；白光模式下防水深度达 100 米，采用全密封防尘防腐蚀设计，可适应各类极端恶劣环境。
控制功能：配备一体化拇指控制开关，集成开关、无极调光、爆闪、安全锁止、SOS 求救信号五大核心功能，单手握持即可完成全部操作。
电池特性：电池无记忆效应，未拆封状态下贮存期长达 10 年。
实战应用案例
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某市公安局刑事技术支队受理一起系列入室盗窃案件，犯罪嫌疑人多次在夜间潜入居民住宅实施盗窃，现场反侦察意识极强，未留下明显可辨识的痕迹物证，多起案件均未提取到有效生物检材与指纹，案件侦查陷入僵局。技术人员携带本手持式生物检材发现仪赶赴系列案件现场，开展复勘工作。在其中一起案件现场，技术人员通过 450nm 蓝光波段对嫌疑人翻动过的衣柜、抽屉进行全面扫描，成功在深色木质抽屉内壁上，发现了嫌疑人遗留的一处肉眼完全无法识别的微量唾液斑迹；同时通过 505nm 蓝绿光波段，在现场窗户光滑玻璃上，成功显现出嫌疑人遗留的汗潜指纹，无需任何化学预处理即完成了清晰拍照固定。技术人员对发现的生物斑迹进行了提取与检验，成功获得了嫌疑人的完整 DNA 分型，通过指纹自动识别系统比对也成功锁定了前科人员李某某。最终侦查人员根据技术线索，成功抓获了犯罪嫌疑人，破获了该起跨区域系列入室盗窃案件，带破同类案件 17 起。本设备的高灵敏度痕迹发现能力，为案件侦破提供了关键的物证线索，成为系列案件成功告破的核心助力。
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某国际级大型体育赛事在国内举办，赛事汇聚全球多个国家的运动员与观众，安保规格极高，核心要求为核心区域零涉恐风险、零安全隐患，需要对场馆核心区域、运动员驻地、赛事通道进行全覆盖、无死角的安全排查。赛事安保指挥部在本次安保工作中，为本届赛事的现场勘查组、安检组、特警应急组全员配备了本手持式生物检材发现仪，用于现场安全排查、可疑物品筛查、应急处置支撑。赛事期间，工作人员使用本设备对场馆核心区域、隐蔽通道、运动员驻地进行了全时段、全覆盖的安全巡检，通过多波段光源快速排查可疑痕迹、异常物品与安全隐患；在安检卡点，工作人员使用设备对可疑包裹、随身物品进行快速筛查，高效识别可疑危险物质残留与异常痕迹；在赛事全程，设备稳定运行，圆满完成了本次赛事的安全排查与应急保障任务，其便携的操作方式、全面的勘查能力、稳定的运行性能，得到了赛事安保指挥部的高度认可。
Application Introduction of Handheld Biological Evidence Discovery Instrument (Polilight Flare® Plus 2 High-Power Multi-Band Investigation Light Source) in Criminal Investigation and Anti-Terrorism Emergency Response
The Handheld Biological Evidence Discovery Instrument (Polilight Flare® Plus 2 High-Power Multi-Band Investigation Light Source) is a new generation of high-power portable multi-band investigation light source developed based on the actual combat needs of global front-line criminal investigation, in strict accordance with national and industry standards such as Technical Requirements for Forensic Science Scene Investigation Light Sources and Rules for On-Site Inspection of Criminal Cases of Public Security Organs. It is also the core essential equipment for SWAT anti-terrorism and explosion-proof emergency disposal, as well as crime scene investigation and forensics work. This equipment is an integrated design powered by batteries. On the basis of fully retaining the core functions of professional multi-band investigation, it has achieved an all-round leap in light intensity, battery life and portability. It can output a full series of high-purity and high-intensity monochromatic light bands from ultraviolet (365nm) to infrared (850nm), which can efficiently excite characteristic fluorescence or brightness contrast of potential biological stains, latent fingerprints, trace fibers and other physical evidence at the crime scene, realizing non-destructive and rapid positioning and identification of trace physical evidence.
With ultra-high brightness output, pure narrow-band spectrum, ultra-long single operation time and user-friendly integrated design, the equipment perfectly adapts to diversified practical combat scenarios such as outdoor field investigation, mobile duty operation, and long-time on-site inspection. It is an ideal professional equipment for front-line criminal technicians and SWAT officers to carry out fast non-destructive trace search, physical evidence development and fixation, and emergency security screening. It is widely used in criminal technology departments of public security bureaus at all levels, forensic authentication institutions, SWAT anti-terrorism units, and major event security implementation units.
Technical Principle
The core of the equipment works based on photoluminescence effect and selective light absorption principle of substances. The whole process adopts pure optical non-destructive detection method, without physical or chemical pretreatment of physical evidence, and will not damage or pollute the original physical evidence and site environment. It fully complies with the core operation principle of "fix first, extract later, non-destructive priority" for criminal scene investigation. The extracted physical evidence images have complete forensic evidence validity.
The core light-emitting unit of the equipment is multiple groups of high-power, narrow-bandwidth special LED light sources, matched with high-performance band-pass filters with optical density OD6 level (10⁻⁶ level). Through precision optical filtering technology, all stray light outside the band is filtered out, and monochromatic light with extremely narrow spectral range and high purity is output, which effectively eliminates the background fluorescence interference caused by stray light. When high-intensity monochromatic light of a specific wavelength irradiates the potential traces on the scene, based on the photoluminescence effect, specific substances in the traces (such as porphyrin in blood, riboflavin in latent fingerprint residues, dye molecules in fibers, organic components in body fluids) will absorb the energy of the excitation light and emit characteristic visible fluorescence with a longer wavelength. Or based on the principle of selective absorption, there is a significant difference in the absorption and reflection capacity of specific wavelength light between the trace and the background of the bearing object, thus forming a brightness and color contrast recognizable by the naked eye.
By wearing special protective observation glasses matching the excitation light band, the user can filter out the excitation light stray light in the environment, and only retain the characteristic fluorescence emitted by the trace, so as to clearly observe the enhanced and "lighted" potential traces in the complex background environment, realize the non-destructive and rapid positioning and identification of trace physical evidence and latent traces, and can directly complete the fixation and extraction of trace images with a camera.
Core Functions and Practical Value
Three-Times Enhanced Ultra-High Power Light Output, Breaking Through the Bottleneck of Complex Environment Investigation
Compared with the previous generation of products, the light output power of each band of the equipment is increased to three times except for the ultraviolet and violet bands. The maximum brightness of the white light mode can reach 3300 lumens, and the output power of the 415nm violet band is as high as 6500mW. The ultra-high power light intensity output can effectively overcome the interference of on-site ambient light and complex background light. Even in the daytime outdoor and strong light environment, it can achieve high contrast excitation effect on weak latent traces, completely solving the industry pain point of "poor excitation effect and unclear traces" of traditional investigation light sources in non-darkroom environments. At the same time, the ultra-high brightness white light mode can take into account the diversified needs such as large-scale scene search, long-distance lighting, and physical evidence photography fill light, realizing "one machine with multiple functions" and greatly reducing the equipment carrying burden of front-line personnel.
OD6 Level High-Purity Narrow-Band Spectrum, Realizing High-Contrast Development of Micro Traces
The equipment adopts OD6 level (10⁻⁶ level) high-performance band-pass filter, which can effectively filter out all stray light outside the band. The output monochromatic light has extremely high spectral purity, which minimizes the fluorescence interference caused by background stray light, makes the characteristic fluorescence signal of the target trace more prominent. Even for trace body fluid stains diluted dozens of times and weak latent fingerprints on the bearing object, it can form a clear contrast effect. The standard beam angle of the equipment is 5°, which can form a uniform light spot with completely consistent brightness at the center and edge, ensuring uniform illumination of the investigation area without dead corners, and no overexposure at the center or dimness at the edge, ensuring the consistency of trace observation and photography. At the same time, the beam angle can be widened by selecting a special filter to adapt to the operation needs of large-scale footprint search and rapid screening of large areas on the scene.
Full-Function Intelligent Human-Computer Interaction, Ultra-Long Battery Life Adapts to All-Weather Field Duty
The equipment is equipped with a multi-functional integrated thumb control switch, which integrates five core functions: one-key on/off, stepless brightness adjustment, strobe mode, safety lock, and SOS distress signal. All operations can be completed with one hand, without two-hand coordination and debugging, which perfectly adapts to the one-hand operation requirements during on-site investigation and emergency disposal, freeing the other hand to complete synchronous work such as photography, recording, and physical evidence protection. The built-in high-capacity 2450mAh lithium-ion battery can work continuously for no less than 200 minutes in the maximum power white light output mode, and the battery life can reach 24 hours in the 35% low power mode, which fully meets the power demand of a complete night scene investigation, all-weather field manhunt, and long-time emergency disposal. Each equipment is equipped with an independent special battery, which supports on-board charging, and has real-time charging status indication and battery over-discharge protection function, which completely solves the battery life anxiety in field duty and scenes without mains power supply.
Military-Grade Robust Protection Design, Adapting to Emergency Disposal in Extreme Environments
The equipment shell adopts fluoropolymer coating process, which has excellent anti-fouling, anti-corrosion and easy cleaning characteristics. Stains and body fluids contaminated during on-site investigation can be quickly wiped and cleaned without causing corrosion damage to the equipment. The whole machine adopts a fully sealed waterproof design, and the waterproof depth can reach 100 meters in white light source mode. It can work stably in extreme harsh environments such as heavy rain, water accumulation, high humidity, wind and sand, and perfectly adapts to the investigation and emergency disposal needs of complex scenes such as wild mountains, water accidents, and heavy rain weather. The total length of the equipment is only 23cm, and the weight is only 700g. Compared with the previous generation of products, the weight is reduced by 20% and the length is shortened by 16%, achieving a perfect balance between ultra-high power and extreme portability. It can be easily stored in the investigation bag and tactical vest pocket, and supports individual carrying with no weight pressure. The service life of the core LED light source of the equipment is extremely long, which can meet the high-intensity professional use for more than 25 years, greatly reducing the maintenance and replacement cost of the equipment.
Full-Band Non-Destructive Investigation Capability, Covering the Search and Development Needs of All Types of Physical Evidence
The equipment can output eight core bands including ultraviolet light, violet light, blue light, cyan light, green-yellow light, red light, white light and infrared light, covering the full spectrum range from 365nm ultraviolet to 850nm infrared. It can flexibly match the optimal excitation band for different types of physical evidence and bearing objects of different materials, realizing full-coverage search and development of all types of trace physical evidence. The whole process adopts pure optical non-destructive detection method, without any physical and chemical pretreatment of the physical evidence, and will not damage or pollute the original physical evidence. Even for the trace biological specimens that need to be precisely inspected in the laboratory later, it will not cause any loss, which perfectly adapts to the whole process operation specifications of on-site initial screening and subsequent laboratory inspection.
Practical Application Scenarios in Criminal Investigation and Anti-Terrorism Emergency Response
This equipment is the core optical equipment in criminal scene investigation, trace physical evidence search, anti-terrorism and explosion-proof emergency disposal. Its application runs through the whole process of on-site initial investigation, physical evidence search, trace fixation, and emergency screening. The core practical application scenarios include six directions:
Rapid Non-Destructive Positioning of On-Site Biological Stains
For latent, diluted and trace biological stains at the crime scene, the corresponding bands can be flexibly matched to achieve rapid positioning: 365nm ultraviolet light can be used to quickly search for latent and highly diluted blood stains on the scene; 415nm violet light or 450nm blue light can be used to efficiently search for semen spots, saliva spots, urine spots and other body fluid residues. The high-brightness and high-purity light source output significantly enhances its trace discovery ability on complex backgrounds such as dark carpets, patterned fabrics, and rough wooden objects. Even trace and diluted biological stains that cannot be recognized by the naked eye can be clearly displayed through characteristic fluorescence, providing key biological evidence clues for case investigation.
Rapid Non-Processing Development of Latent Sweat Fingerprints
For latent sweat fingerprints on the surface of bearing objects of different materials, 450nm blue light, 505nm cyan light or 545nm green-yellow light can be flexibly selected for directional irradiation to excite the organic components such as riboflavin and amino acids in the latent sweat fingerprints to produce characteristic fluorescence. Rapid non-destructive screening and photography fixation of latent fingerprints can be realized without any pretreatment such as powder brushing and chemical development, which effectively avoids the damage and pollution of fingerprint traces by traditional development methods. At the same time, it can solve the difficult problem of fingerprint extraction that is difficult to be developed by traditional methods on smooth objects, translucent objects and complex background objects.
Accurate Search of Trace Physical Evidence and Difficult Traces
Using 620nm red light and 850nm infrared light, it can accurately inspect and search fiber transfer traces on dark textiles, dust footprints on the scene ground, tool marks, paint fragments, glass debris and other trace physical evidence, solving the problem that trace physical evidence on dark background is difficult to find by the naked eye. The 3300 lumen ultra-high brightness white light mode can provide extremely strong spotlight illumination for long-distance target observation, large-scale conventional trace search on the scene, overall scene lighting and physical evidence photography fill light, which perfectly adapts to the whole process lighting and investigation needs of on-site investigation.
On-Site Rapid Identification of Suspicious Documents and Certificate Authenticity
Through directional irradiation of monochromatic light of different bands, it can quickly detect smeared and covered handwriting, faded handwriting, added and rewritten handwriting written by different inks, the authenticity of seal impressions, as well as the forgery and alteration characteristics of ID cards, passports, bills and other documents. It can complete the preliminary rapid identification of documents and certificates on the scene without laboratory precision instruments, providing real-time technical support for case investigation, document verification, and public security inspection. It is widely used in economic case investigation, entry-exit inspection, public security checkpoint inspection and other scenarios.
Rapid Screening of Anti-Terrorism and Explosion-Proof and Emergency Disposal Scenes
In the emergency disposal of terrorism-related and explosion-related cases, hazardous chemical leakage, and public security emergencies, the multi-band light source can be used to quickly scan suspicious packages, suspicious items, vehicle interiors, and the on-site environment, quickly find key physical evidence such as potential explosive residues, hazardous chemical traces, and biological specimens, providing real-time clues for on-site explosive disposal, risk investigation, and case investigation. At the same time, the strobe mode can be used to realize on-site warning and personnel driving away, and the SOS mode can be used for field emergency distress, which perfectly adapts to the diversified duty needs of anti-terrorism emergency disposal.
Major Event Security and Normalized Inspection of Key Areas
It can be widely used in the security of major events such as major international conferences, sports events, festivals, as well as the normalized inspection of key vital places such as party and government organs, nuclear power facilities, and military units. It can carry out normalized trace search and safety investigation of the core areas of the venue, hidden passages, and key protection parts, quickly find suspicious traces, abnormal items and potential safety hazards. At the same time, it can be used for public security checkpoint inspection and rapid screening of personnel's personal belongings, building a security prevention and control line for major events and key places.
Core Technical Parameters
Output Band Range: Covers eight core bands, including Ultraviolet (UV) 365-385 nm, Violet 405-420 nm (peak 415nm), Blue 435-465 nm (peak 450nm), Cyan 485-515 nm (peak 505nm), Green/Yellow 530-560 nm (peak 545nm), Red 615-635 nm (peak 620nm), White 400-700 nm, Infrared (IR) 835-865 nm (peak 850nm).
Optical Performance: Standard beam angle of 5°, uniform spot without vignetting; filtering purity up to 10⁻⁶ (OD6 level); beam angle can be widened by optional filter to adapt to the needs of different investigation scenarios.
Light Source Performance: The maximum brightness of white light mode is 3300 lumens, and the output power of 415nm violet band is 6500mW; the LED light source has a long service life, which can meet the needs of high-intensity professional use for more than 25 years.
Power Supply and Battery Life: Built-in 2450mAh high-capacity lithium-ion battery, the battery life in strong white light mode is no less than 200 minutes, and the battery life in 35% power mode can reach 24 hours; it supports on-board charging, with real-time charging status indication and battery over-discharge protection function.
Physical and Protection Characteristics: The total length of the machine is 23cm, and the weight is 700g; the shell adopts fluoropolymer coating process, with excellent anti-fouling and anti-corrosion performance; the waterproof depth in white light mode is 100 meters, with fully sealed dustproof and anti-corrosion design, which can adapt to all kinds of extreme harsh environments.
Control Function: Equipped with an integrated thumb control switch, which integrates five core functions: on/off, stepless dimming, strobe, safety lock, and SOS distress signal, all operations can be completed with one hand.
Battery Characteristics: The battery has no memory effect, and the storage life is up to 10 years in unopened state.
Practical Application Cases
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The Criminal Technology Detachment of the Municipal Public Security Bureau accepted a series of burglary cases. The suspect repeatedly sneaked into residential buildings at night to commit theft. The suspect had a strong sense of anti-investigation at the scene, did not leave obvious identifiable trace physical evidence, and no effective biological specimens and fingerprints were extracted in many cases, so the investigation of the case fell into a deadlock. The technicians carried this Handheld Biological Evidence Discovery Instrument to the scene of the series of cases to carry out re-investigation.
At the scene of one of the cases, the technicians conducted a comprehensive scan of the wardrobes and drawers touched by the suspect through the 450nm blue light band, and successfully found a trace saliva spot left by the suspect on the inner wall of the dark wooden drawer, which was completely unrecognizable by the naked eye. At the same time, through the 505nm cyan light band, the latent sweat fingerprint left by the suspect was successfully developed on the smooth glass of the scene window, and clear photography and fixation were completed without any chemical pretreatment.
The technicians extracted and inspected the discovered biological stains, successfully obtained the complete DNA typing of the suspect, and also successfully locked the former convict Li through the comparison of the Automated Fingerprint Identification System. Finally, the investigators successfully arrested the criminal suspect according to the technical clues, solved the cross-regional series of burglary cases, and uncovered 17 similar cases. The high-sensitivity trace discovery capability of this equipment provided key physical evidence clues for the detection of the case, and became the core help for the successful detection of the series of cases.
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An international large-scale sports event was held in China, gathering athletes and audiences from many countries around the world, with extremely high security specifications. The core requirements were zero terrorism-related risks and zero potential safety hazards in the core area, and full-coverage and no-dead-angle safety inspection of the core area of the venue, the athletes' residence, and the event passage was required. In this security work, the event security headquarters equipped all the on-site investigation teams, security inspection teams, and SWAT emergency teams of the event with this Handheld Biological Evidence Discovery Instrument for on-site safety inspection, suspicious item screening, and emergency disposal support.
During the event, the staff used this equipment to carry out full-time and full-coverage safety inspection of the core area of the venue, hidden passages, and athletes' residences, and quickly checked suspicious traces, abnormal items and potential safety hazards through the multi-band light source. At the security checkpoints, the staff used the equipment to quickly screen suspicious packages and personal belongings, and efficiently identify suspicious hazardous substance residues and abnormal traces. Throughout the event, the equipment operated stably and successfully completed the safety inspection and emergency support tasks of the event. Its portable operation mode, comprehensive investigation capability and stable operation performance were highly recognized by the event security headquarters.