I think the problem is that, let’s say the police drives past your house and sees a pile of bodies. Then they check on you and find you are a serial killer and

I think the problem is that, let’s say the police drives past your house and sees a pile of bodies. Then they check on you and find you are a serial killer and arrest you. Now, if you were smart and buried the bodies, is the police supposed to knock on your door and say: “Good job, keep doing what you are doing because you are obviously doing nothing wrong, as evidenced by the lack of bodies on your lawn.” They don’t do that, they simply drive past and probably assume you’re honest but reserve judgement until later.