WBUR’s Deb Becker interviews Thomas Workman, a defense attorney and adjunct professor at the University of Massachusetts School of Law, who did his own analysis of the drug lab’s data.

Three violent crimes in Brockton — including a brazen daytime murder — are linked to defendants who were released because of the state drug lab crisis.

The indictment charges Donta Hood with fatally shooting Charles Evans in Brockton last month — eight months after Hood was released from prison.