State v. Clark (2002)
In State v. Clark, 260 Conn. 813, 801 A.2d 718 (2002), the Court determined that the effect of smoking marijuana on a witness' ability to perceive and to recall events is within the common knowledge of jurors.
The court stated:
"We recognize that, because it is an illegal substance, it may be that many jurors may have no firsthand knowledge regarding the effects of marijuana on one's ability to perceive and to relate events. At the same time, we cannot blink at the reality that, despite its illegality, because of its widespread use, many people know of the potential effects of marijuana, either through personal experience or through the experience of family members or friends. The ability to draw inferences about the impairing effects of marijuana, like alcohol, however, is based upon common knowledge, experience and common sense, not necessarily on personal experience. . . . The unfortunate prevalence of marijuana use, coupled with the substantial effort to educate all segments of the public regarding its dangers, underscores the reality that the likely effects of smoking five marijuana cigarettes in a short period of time before an incident are within the ken of the average juror." Id. at 824-25.