That would be the wrong approach. First big problem is that cops or anyone else can wear gloves. Second, you aren’t really trying to prove who owned the drugs. You would be interested in proving that the space in which the drugs were found previously did not contain the drugs before the cops “found” them. That’s why bodycams are super important. Most evidence tampering cases boil down to “spot was clearly empty before cop mysteriously produces drugs from the same spot”
As a welder, I’ve had a female coworker ONCE in 15 years working in the industry. My current work doesn’t even have a bathroom for women in the same building as most of the workers. If we did hire a female welder, she’d have to walk across the parking lot to the administration building to actually use a women’s bathroom.