I recall reading similarly-alarming articles about other police junk science in the US. For example, Shot Spotter: https://news.ycombinator.com/item?id=2795975

I recall reading similarly-alarming articles about other police junk science in the US. For example, Shot Spotter: https://news.ycombinator.com/item?id=27959755 https://news.ycombinator.com/item?id=27959755 https://news.ycombinator.com/item?id=32258854 https://news.ycombinator.com/item?id=32258854 https://news.ycombinator.com/item?id=31958201 https://news.ycombinator.com/item?id=31958201 I believe I have read similar about drug sniffing dogs and certain forms of field drug testing. There appears to be no sufficient mechanism for preventing junk science from tainting the process of justice.