human
Is there a way to tell if someone has been using methamphetamine?
assistant
Yes, there are several ways to test for the presence of meth in a person's system. One method is through urinalysis, which involves testing urine samples for traces of methamphetamine and its breakdown products. Another option is hair analysis, which tests the concentration of drugs in a person's hair over time. Additionally, blood or saliva tests can be used to detect the presence of meth.