Yes. Marijuana DUI cases in Rhode Island are often more defensible than alcohol DUI cases because of the lack of a per se THC limit. Defense angles include challenging the officer's basis for the initial stop, contesting field sobriety test administration (these tests were designed for alcohol impairment and have lower reliability for marijuana), questioning the Drug Recognition Expert's qualifications and methodology, attacking chain of custody on blood or urine evidence, and arguing that THC presence does not prove current impairment. The lack of a bright-line legal limit creates real space for reasonable doubt at trial.
