I've personal experience of police not doing their job properly.

Anything that makes their job more easy will only make them more lazy.

Police work should be hard, because they have to navigate the law if they're to prosecute anyone. Lawyers love laziness, it's sloppy and steps all over lines of technicality.

Also, the legal right to violate citizens rights should never be 'made easier' by any legislation. To be on the end of state-enabled rights violations pretty much entirely ruins any trust one may have in 'the system'. And that trust seems to be increasingly valuable and decreasingly present amongst the Western populace.