I don't know the particulars of this case. But it's shockingly easy for this stuff to go on for years. Just a tacit acknowledgement that people lie and get away with it leads to an expectation of corruption, leading to actual corruption that exceeds expectations, leading to new expectations of worse corruption. General moral decay. Here are a few articles on fake lab results going back years. I couldn't even find the one I was searching for, an FBI crime lab in Colorado, because it's so pervasive. Too much acceptance of other people's work, without checking or enforcing basic honesty.
I don't know the particulars of this case. But it's shockingly easy for this stuff to go on for years. Just a tacit acknowledgement that people lie and get away with it leads to an expectation of corruption, leading to actual corruption that exceeds expectations, leading to new expectations of worse corruption. General moral decay. Here are a few articles on fake lab results going back years. I couldn't even find the one I was searching for, an FBI crime lab in Colorado, because it's so pervasive. Too much acceptance of other people's work, without checking or enforcing basic honesty.
https://www.abajournal.com/magazine/article/crime_labs_under_the_microscope_after_a_string_of_shoddy_suspect_and_fraudu
https://www.nbcnews.com/news/us-news/epic-drug-lab-scandal-results-more-20-000-convictions-dropped-n747891
https://www.austinmonitor.com/stories/2017/09/the-implosion-of-austins-crime-lab-a-timeline/
https://www.sfgate.com/bayarea/article/Technician-boss-in-S-F-police-lab-scandal-6169230.php