All of which require a warrant before they can be used as evidence against you. If you are talking about the US, I think you are mistaken. While a warrant wou

All of which require a warrant before they can be used as evidence against you. If you are talking about the US, I think you are mistaken. While a warrant would usually be required to compel the store to provide the videotape to the police against their will, the store can always choose to provide it voluntarily. Once the prosecution has a copy of the video, they can use it as evidence whether or not there was a warrant.