What is the most common reason people fail the testing process?
There is no single reason. Candidates are automatically disqualified if they withhold information and/or provide false information. Also, you will automatically be disqualified if you have illegally used any “hard” drugs (cocaine, methamphetamine, LSD, heroin, etc.) within the past 10 years, and you may be disqualified if you have ever used such drugs. And, depending on the circumstances, you may be disqualified if you have abused or illegally used any drugs (marijuana, alcohol, prescriptions, etc.).
