They can. Parliament could table a bill tomorrow if it so chose, and have it passed in a week if the political support was there.
You don’t like what the law currently is and you don’t like what I’m telling you about what that means for our ability as police to do the things you want us to do. That doesn’t mean the system’s broken, it just means you don’t like the law. What you actually want here is the creation of new criminal offences to target behaviour you object to but that isn’t currently criminal.