When it comes to obtaining copies of evidence, it generally depends on the type of evidence you’re trying to collect.

In this case, the first thing you should do is request the police report, since it might include accident scene photos or videos captured by the police. 

You can obtain a police report:

• In person: by submitting a request in the law enforcement agency or crash reports unit.

• Online: Since a lot of online portals are available for requesting and downloading the police report.

In many states, these photos or videos are considered public records, so you can have access via FOIA (Freedom of Information Act)