GA/T 952-2011

Forensic examiners, police investigators, and traffic management personnel use this standard to inspect engine numbers and frame numbers on vehicles involved in cases, determining whether the numbers have been altered and recovering original markings. It provides a unified technical protocol for vehicle identification in criminal investigations, accident reconstruction, and vehicle registration, ensuring the reliability and legal admissibility of examination results.

公安、刑侦、交通管理等部门的技术人员使用该标准，对涉案机动车的发动机号码和车架号码进行检验，以判断号码是否被改动并复现原始号码。该标准为案件侦破、车辆身份确认和交通事故处理提供了统一的技术规范，确保检验结果的科学性和法律效力。

This standard establishes the procedure for forensic examination of vehicle engine numbers and frame numbers, covering examination content, requirements, methods, steps, and conclusion expression. It applies to criminal, public security, civil cases, traffic accidents, and vehicle registration. The examination process includes direct observation, tactile inspection, physical inspection, and chemical development methods to determine whether numbers have been altered and to recover original markings. The standard also specifies equipment, reagent, and laboratory environment requirements, along with various forms of conclusion statements, providing a unified technical basis for vehicle identification.

本标准规定了法庭科学领域对机动车发动机号码和车架号码进行检验的规程，包括检验内容、要求、方法、步骤及结论表述。适用于刑事、治安、民事案件及交通事故、车辆入户等场景。检验流程包括直接观察、触摸检验、物理检验和化学显现等方法，旨在判断号码是否被改动并复现原始号码。标准还明确了设备、试剂及实验室环境要求，以及检验结论的多种表述形式，为车辆身份鉴定提供了统一技术依据。