Los Angeles Crime Lab messes up a rape test. 10 trillionths of a gram of genetic material can put you in jail. 

It took LA Senior Public Defender Sam Leonard 17 months to get to the truth.

“If this is incompetence, it’s gross incompetence … and repeated gross incompetence,” Thompson said. “You have to wonder if [the techs] could really be that stupid.”

– William Thompson (Talking about Low Cell Number DNA testing.)

Read first: “The false promise of DNA testing – the forensic technique is becoming ever more common- and ever less reliable.” (2016)

Then read about Sam’s DNA West LA  case: 

“I’ve been doing DNA for 10 years – only DNA cases – and I’ve never seen anything like it,” Leonard said of the case. (2017)