Can crime labs be trusted?

Think you've heard everything about problems at crime labs? Check this out:

"You can take a two-week course and you could call yourself an expert and get hired and make life-and-death tough decisions"

CNN takes an in-depth look at the increasingly questionable reliability of long-used forensic science techniques. Everyone interested in the subject should read it. For more, see Grits coverage of a recent Texas Senate committee hearing on Texas crime labs, and ACLU of Texas testimony proposing reforms.