No I am perfectly capable of rightly placing blame on both. In this context the Cops, prosecutors and judges all have an ethical duty to the truth. All 3 seem to have forgotten that underlying obligation in the system
They want that "win", that conviction, that revenge, or what ever.
So yes I will blame the judge for letting bad "evidence" in that lacks proper foundation, but I will also blame the cop that is presenting the "evidence" and the prosecutor that presented the "evidence"
Our systems have layers for a reason, we can not and should not have to relay solely upon the Judge as the first, last and only line of defense here.