If you can’t trust your police with it, then there is something fundamentally wrong with your society.
This announcement coincides with protests against police brutality, at which many police have behaved brutally. That was sparked by an outright homicide by a police officer, captured on video, of a man who was subdued and presented no threat -- while other police officers watched, and many others have subsequently attempted to justify.
The "something fundamentally wrong" is very complex and subject to genuine debate, but it's not subject to debate that whatever it is, people don't trust the police.