The Art and Crime of Graffiti

There’s one kind of expert whose role is enshrined in law: that of the expert witness, who’s called on to bolster one side of a case. But courtrooms are not great places for nuance. Overconfident expert testimony has been linked to countless wrongful convictions, especially in gang-related cases. Michael speaks with a new kind of expert witness: former gang members who struggle to counteract the testimony of police.

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