The TSA has a specific list of disqualifying criminal offenses that are divided into "permanent" and "interim" categories. Permanently disqualifying crimes include espionage, sedition, treason, terrorism, and murder; if you have ever been convicted of these, you can never get PreCheck. Interim disqualifying crimes—where you are ineligible for 5 to 7 years after conviction or release from prison—include robbery, bribery, extortion, arson, and drug-related offenses (specifically distribution or importation of a controlled substance). Interestingly, simple possession of a small amount of a controlled substance is often not an automatic disqualifier in 2026, depending on the state. Additionally, any "security-related" offenses, such as making a bomb threat or assaulting a flight crew member, will lead to an immediate and likely permanent ban from all "Trusted Traveler" programs like PreCheck and Global Entry.