Even with elaborate and accurate equipment, there are likely to be many legal battles fought over how legitimate the equipment is.
As marijuana becomes legal and regulated in many states, law enforcement is often struggling to keep up with the times. There is definitely a learning curve when something that was illegal suddenly becomes legal, and this is particularly true with marijuana. In fact, determining whether someone is under the influence of cannabis remains a difficult thing to prove in a court of law.
(Originally posted by Cannabis News)