The CCTV is their property. To view the CCTV contents on their property without permission, they need to have a search warrant. Most businesses will just let th

The CCTV is their property. To view the CCTV contents on their property without permission, they need to have a search warrant. Most businesses will just let the cops see CCTV for events that matter but it is their right to refuse to do that unless they get a warrant. The "reasonableness" of the search is constantly argued in the courts, which is why, for an example, students have less protection from a search.