Glossary / Tactics & Scene Control / Scene security Scene security Controlling an incident location to protect the people in it, the officers working it, and the evidence in it. Usually the reason bystanders are told to move back.
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Every term here is one that comes up in the United States, in the footage covered in the Atlas Ioka videos , explained as it is used on police radio, in reports and on camera. This is not legal advice and not a statement of law in any particular place: radio codes, offense definitions, testing procedure and evidentiary rules all vary between agencies and between states, so treat each entry as a starting point rather than an authority.