How accurate are Swabs for benzodiazepines?

Swab tests for benzodiazepines can provide quick results, but their accuracy can vary based on several factors, including the specific swab technology used and the timing of the test in relation to drug use. Generally, these tests are more reliable for detecting recent use rather than long-term use, as benzodiazepines can remain in the system for extended periods. False positives and negatives can occur, so confirmatory testing, such as urine or blood tests, is often necessary for definitive results.