OSAC issued a warning in 2012, suggesting ~30k cases a year.
From Wikipedia:
> Between 1998 and 2004, 13% of emergency-room admissions for "poisoning with criminal intentions" in a clinic of Bogotá, Colombia, have been attributed to scopolamine, and 44% to benzodiazepines.[39] Most commonly, the person has been poisoned by a robber who gave the victim a scopolamine-laced beverage, in the hope that the victim would become unconscious or unable to effectively resist the robbery.[39]
From Wikipedia:
> Between 1998 and 2004, 13% of emergency-room admissions for "poisoning with criminal intentions" in a clinic of Bogotá, Colombia, have been attributed to scopolamine, and 44% to benzodiazepines.[39] Most commonly, the person has been poisoned by a robber who gave the victim a scopolamine-laced beverage, in the hope that the victim would become unconscious or unable to effectively resist the robbery.[39]