What if the police thinks someone is hacked, starts intercepting and recording their communication, and then later it turns out they were not hacked? In other w

What if the police thinks someone is hacked, starts intercepting and recording their communication, and then later it turns out they were not hacked? In other words, the police could intercept anyone’s communication. Then later if the police is questioned about this, they could say, “Sorry about that. We thought you were hacked. Guess you weren’t.”