Why do police require dashcam footage one minute either side of any incident?

Why do the police require dashcam footage for one minute before and after an incident? I reported an incident that occurred less than a minute before parking at home when the recording stopped when the engine was stopped.

Asked on 28 July 2023 by Graham Saunders

Answered by David Ross
The police will generally ask for a period of footage either side of the incident in order to ensure selective editing has not taken place and to provide some context for the incident itself. It is possible that circumstances leading up to or after it may have contributed to the incident.

Even if the footage you have does not continue for the required period we would still suggest sending it in if that is possible, and explain when doing so that you had reached your destination.
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