Note camera locations and who may hold recordings: a business, parking area, condominium, home, or vehicle. Recordings may be overwritten, so timing matters.
Identify the approximate time window, precise location, and anyone who confirmed footage exists. If a witness is willing, obtain their name and contact information without suggesting what they should say.
Promptly tell the office about possible evidence so appropriate preservation steps can be evaluated. A preservation request does not guarantee footage exists, will be produced, or contains a particular event. Do not access systems or property without authorization.
The answer for your situation depends on the facts and records. An inquiry does not suspend legal deadlines or guarantee that the office will accept the case.