Yes. Marijuana DUI in Rhode Island requires specialized defense work because of the technical issues around THC pharmacokinetics, Drug Recognition Expert testimony, and the lack of a per se legal limit. A marijuana DUI lawyer who understands these technical issues can build defenses that general criminal defense lawyers may miss. The case may involve expert witnesses on toxicology, challenges to DRE methodology, and detailed cross-examination of arresting officers on impairment indicators. Even though marijuana DUI cases are often more defensible than alcohol DUI cases, that advantage only materializes when defense counsel knows how to exploit it.