Cheating a saliva test with lemon: guaranteed failure
Key takeaway: using lemon does not produce a negative result, but invalidates the saliva test by blocking the “C” control line. This anomaly is interpreted as an attempt to cheat and may lead to a blood test. The only reliable way to avoid a positive test remains complete absence of THC, by choosing THC-free CBD products. Many drivers wonder whether it is possible to cheat a saliva test with lemon to conceal recent use. However, scientific data and police protocols show that acidity does not fool modern screening devices. This article explains how the tests actually work, the consequences of attempting to cheat, and the legal solutions for staying compliant with the law.