People v. Clayborne

Plaintiff was convicted, after jury trial, of unlawful possession of a controlled substance with intent to deliver. Although State's expert, a forensic scientist with Illinois State Police, did not testify that the GCMS machine (for conducting standard scientific tests on the off-white powder collected as evidence, and which she used to conclude that it contained cocaine) was generally relied upon by experts in her field, her testimony was sufficient to establish this foundational requirement. Expert's testimony was sufficient to show that the GCMS machine was functioning properly when she conducted the tests.(CARTER and McDADE, concurring.)