<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Do you know much about drug testing?
<|assistant|>
I know quite a bit about drug testing. Drug testing is the process of examining a person's urine, hair, blood, or other biological samples to look for the presence of drugs or other types of substances. Common types of drug tests measure the amount of a specific drug or metabolite in the body, while other tests can detect the use of particular drug classes or groupings of drugs. Drug testing can be performed for a variety of reasons, such as for employed workers or athletes, but it may also be requested for legal reasons or when someone applies for a job. Drug testing methods continue to improve and develop, with some being able to detect drugs used weeks or even months prior to the test. In addition, many companies also use testing for drugs that are thought to be harmful, such as designer drugs or "legal highs", giving workers additional protection from unknowingly taking dangerous drugs.