sec.169Preserving evidence at crime scene

### sec.169 Preserving evidence at crime scene The responsible officer at a crime scene must ensure that nothing in the crime scene is unnecessarily touched or moved— until all necessary forensic and technical examinations are finished; or unless there is a possibility that the thing could be damaged, interfered with or destroyed if it is not moved. if the arrival of the investigator, or an authorised assistant or specialist officer will be delayed and the scene is exposed to the weather if falling or threatened rain may damage fingerprints that may be on a knife left on the ground - (a) until all necessary forensic and technical examinations are finished; or - (b) unless there is a possibility that the thing could be damaged, interfered with or destroyed if it is not moved. Examples of when evidence may be damaged or destroyed if a thing is not moved— 1 if the arrival of the investigator, or an authorised assistant or specialist officer will be delayed and the scene is exposed to the weather 2 if falling or threatened rain may damage fingerprints that may be on a knife left on the ground - 1 if the arrival of the investigator, or an authorised assistant or specialist officer will be delayed and the scene is exposed to the weather - 2 if falling or threatened rain may damage fingerprints that may be on a knife left on the ground - 1 if the arrival of the investigator, or an authorised assistant or specialist officer will be delayed and the scene is exposed to the weather - 2 if falling or threatened rain may damage fingerprints that may be on a knife left on the ground