Successful drug law enforcement faces many challenges. Among them is the possibility that their own officers succumb to corruption, essentially contributing to the problem they are trying to fix. At the same time, many illegal police practices can be effective mechanisms for fighting drug smuggling and deals. In recent years, the city of Abbotsford has struggled with an increase in drug use, especially among youth in the low-income community. Combating this increase has been challenging for the local police department. Stricter drug laws and increases in enforcement of existing laws have not made a dent in drug use rates. The Abbotsford police chief decides to switch tactics to instead target suppliers and attempt to limit the availability of drugs. Using informants is a key part of this plan. Let's review a few concepts before you make a decision about this scenario. Of the following, which can significantly contribute to police corruption? Constitutional constraints Communication training Informants The exclusionary rule