GA/T 1970-2021 in English

Analysis of the key points of the forensic clinical laboratory test specification

Standard framework and scope of application

As a public safety industry standard (GA/T), this specification is applicable to human injury inspection activities related to law, including full-process technical requirements such as injury type identification, measurement methods, and functional evaluation. The main body of the standard is divided into 5 chapters and 16 sections, systematically covering the inspection system from surface injuries to internal organs.

Key technological breakthroughs

Functional evaluation system

A quantitative formula for joint function loss is established:

Joint function loss value = Σloss value in each direction / number of active directions

The accompanying appendix specifies in detail the muscle strength examination methods and grading standards (0-5 levels) for 9 major joints such as shoulder, elbow, and wrist.

Implementation suggestions

1. Test timing: primary injury should be tested immediately after injury, complications should be tested after treatment is stable (3-6 months)
2. Required equipment list: CT/MRI, ultrasound biomicroscope, visual electrophysiological detector, etc.
3. Special parts inspection specifications: perineum inspection requires female staff to be present, sexual assault cases shall be handled in accordance with GA/T 1194

Standard evolution analysis

Compared with previous versions, this standard:

• Added new types of injuries such as fat embolism syndrome and prosthesis damage
• Refines the quantitative evaluation methods for complex anatomical structures such as the auricle and nose
• Introduces digital measurement technology (assisted by Photoshop and AutoCAD software)