What is the primary tool used by the Navy to detect drug abuse?

The primary tool used by the Navy to detect drug abuse is urinalysis testing. This method is favored because it is a reliable and effective way to screen for a wide range of illegal substances and alcohol. Urinalysis can detect recent drug use and is non-invasive, which makes it practical for regular and random testing. Additionally, the Navy employs this testing as part of a broader zero-tolerance policy on drug abuse, emphasizing readiness and the health of service members.

In contrast, while physical examinations can identify certain health issues and may reveal signs of drug use, they are not specifically designed for drug detection. Interviews can provide insights into behavior or possible substance abuse, but they are subjective and rely heavily on the responses of individuals. Blood testing can also detect some drugs, but it is typically more intrusive and not used as commonly as urinalysis for routine screenings. Thus, urinalysis stands out as the most effective and widely implemented method for identifying drug abuse within the Navy.