Busted
Examining Chemical Field Tests
Tens of thousands of people every year are sent to jail based on the results of a $2 roadside drug test. Widespread evidence shows that these tests routinely produce false positives. Why are police departments and prosecutors still using them?
Houston Police End Use of Drug Tests That Helped Produce Wrongful Convictions
The cheap kits were often the sole evidence used to win guilty pleas, against the innocent as well the as guilty.
Prosecutors in Portland Change Policy on Drug Convictions
No guilty plea for drug possession will stand in Multnomah County unless the preliminary police field tests used to make arrests are confirmed in a lab.
Defense Lawyers in Las Vegas Consider Formal Challenge to Use of Field Tests in Drug Prosecutions
Local defense bar explores options after ProPublica investigation showed that police and prosecutors continue to use flawed drug tests in sending thousands to jail.
What We’re Watching
During Donald Trump’s second presidency, ProPublica will focus on the areas most in need of scrutiny. Here are some of the issues our reporters will be watching — and how to get in touch with them securely.
Learn more about our reporting team. We will continue to share our areas of interest as the news develops.

Sharon Lerner
I cover health and the environment and the agencies that govern them, including the Environmental Protection Agency.

Andy Kroll
I cover justice and the rule of law, including the Justice Department, U.S. attorneys and the courts.

Melissa Sanchez
I report on immigration and labor, and I am based in Chicago.

Jesse Coburn
I cover housing and transportation, including the companies working in those fields and the regulators overseeing them.
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