Man it's shocking how bad forensic "science" is. If you watch Law & Order you may be convinced that police can detect gun shot residue on a suspects hands/cloth

Man it's shocking how bad forensic "science" is. If you watch Law & Order you may be convinced that police can detect gun shot residue on a suspects hands/clothing or match shell casings to a specific gun. It turns out just throwing handcuffs on someone is enough to get a false positive GSR test. And matching a shell casing to a specific gun is essentially impossible. The false positive rates on forensic "tests" are hard to study because no one has an incentive to, and if you go digging you'll find how bad they can be. Like for example K9 units have about a 50% false detection rate (dog indicated but no drugs/weapons/bombs found). If a cop told you they flipped a coin to decide whether to search a car then the search would be tossed out of evidence immediately!