Seeing a lot of comments about how the justice system sucks. But... isn't prosecuting people who destroy evidence exactly what should be happening? Bad person

Seeing a lot of comments about how the justice system sucks. But... isn't prosecuting people who destroy evidence exactly what should be happening? Bad person does bad thing > prosecuted Bad person tries to hide bad thing > prosecuted for that too As far as I can tell, this is what a good justice system looks like.