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Home / Opinion Digests / Criminal Law / Testimony of firearm identification experts limited in gang case (access required)

Testimony of firearm identification experts limited in gang case (access required)

Where firearm experts’ testimony is subjective and lacks established methodology, error rate or statistical foundation for its conclusions, the experts may not testify that microscopic marks indicate a “match,” that cartridge cases were fired by the same firearm or have “signature” toolmarks identifying a single firearm. Background This multi-defendant, multi-count prosecution began on June 11, 2018, when ...