Government-funded researchers and private companies are working on a new breed of pharmaceuticals designed to police your blood, identify illegal drugs, and block them from entering your brain. The CCLE is concerned that some courts may require use of these new "anti-drug" drugs as a condition of receiving probation in drug possession cases. One such drug, known only as SR141716 targets marijuana inside the body. If SR141716 is imposed as a probation condition it, alone, could affect nearly 700,000 people each year who are arrested for marijuana-related offenses.