Probably cannot be 100%, even a lab can imply that but perfection does not happen repeatedly as human error and testing ambient conditions deny that attainment. Lets just say the politics and lawyers and mommy nature will come together and settle on 75-90% accuracy as the standard reading range proving chemical MJ intoxication. We all know the testing officer will testify and his or her judgment on the ground will be acceptable by the court as valid evidence (individual stopped and tested cannot read correctly road signs, walk normally a straight line and balance on one foot, smells MJ in vehicle and on person of subject, cannot reason and answer correct list of test questions and threw out a joint or two on the highway and sample debris bagged as evidence). Rehab, electronic locator on-person band, and sentence fine all the pay-offs for being dumb enough to operate vehicle under influence on MJ, medical or otherwise . . . as representing threat to self and public safety if traversing a public area.
An interesting question might be . . . will Trump compete with True-Dough to be first to enact Recreational and Medical MJ nationwide Law? Note his focus on going after O-bomb executive actions after he felt past administration had made public fun of the New American agenda.
Translation: Trump may kick MJ as Federal Crime Drug back to venue of states to each decide, while enforcing funding for Law Enforcement mobile MS Reader Device Production Order. <---as another way to Play-Kate the Far Right Religious Agenda of 'Seek-No-Evil and Pay taxes via Fines.
Lots of Black Swans poking up all around MJ Legalization and the Ballad of BLOWING-In-THE-WIND, for BLOZF, so to speak?
POLITICS TRUMPS SCIENCE . . . ITS THE HUMAN THING TO DO
