Proving substance abuse can be challenging. The following methods are often used to do so:
* Drug testing: Testing for the presence of drugs in a person's body or system.
* Observation: Watching for physical and mental signs of drug use, such as changes in behavior or appearance.
* Records review: Examining medical, employment, and criminal records for evidence of drug use.
* Interviews with family members/friends: Gathering information from people close to the individual who may have seen them using drugs or behaving erratically due to intoxication.
By utilizing one or more of these methods, it is possible to build a strong case that an individual has been abusing substances.