Multi-angle portable field trace detector

Abstract

The invention relates to the field of criminal investigation detection equipment, in particular to a multi-angle portable field trace detector. The detector comprises a shell, a laser transmitter, a controller, a detector, a power supply and a switch, and is characterized by also comprising a flexible pipe, wherein one end of the flexible pipe is mounted at the output end of the laser transmitter, and the flexible pipe extends outwards along a first through hole; a partially reflecting mirror, which is disposed at the other end of the flexible pipe; an optical fiber, which is arranged in the flexible pipe, wherein the laser output by the laser transmitter is transmitted to the input end of the partially reflecting mirror through the optical fiber; and a camera, which is arranged on the side of the partially reflecting mirror and fixedly connected with the flexible pipe, wherein the camera is used for receiving reflected light of the laser output by the partially reflecting mirror, and the camera is in communication connection with the detector and the controller. The purpose that the laser transmitter can transmit special light sources at multiple angles is achieved, and the technical problem of multi-angle portable detection of the field trace detector is solved.

Description

technical field [0001] The invention relates to the field of criminal investigation detection equipment, in particular to a multi-angle portable on-site trace detector. Background technique [0002] At present, in the field of criminal investigation, the trace detector is an indispensable equipment. With the improvement of technology, the trace detector is also continuously upgraded. The current trace detector can automatically identify the content of the exposure according to the scene before and after the special light source is photographed. Whether it contains special traces, such as blood stains, occult blood, semen spots, saliva spots, sweat spots, urine stains, hair, footprints, exfoliated cells, bone and tooth fragments, sweat fingerprints, dust fingerprints, occult blood fingerprints and grease fingerprints, etc. [0003] Chinese patent CN202021327690.9 discloses a portable instrument for detecting traces on the scene of criminal investigation, which relates to the ...

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Problems solved by technology

[0004] The above patents are applicable to most occasions, but the current high-end criminals have strong anti-reconnaissance capabilities, and they will not miss necessary traces in conspicuous places at will. More necessary traces will appear in places with narrow entrances. Even in narrow and curved pipelines, the use of conventional on-site trace detectors will not only make it impossible for staff to detect such areas, but also make them subconsciously miss these narrow areas, resulting in the possibility of missing necessary traces

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