While Amtrak does not have a TSA-style mandatory screening for every passenger, they do have a dedicated police force and utilize various methods to monitor for illegal substances. Amtrak Police officers, sometimes accompanied by K-9 units trained to detect narcotics and explosives, frequently patrol stations and board trains for random inspections. These checks are more common at major hubs or on routes known for interstate drug trafficking. Additionally, Amtrak reserves the right in its terms of service to inspect baggage if there is "reasonable suspicion" of a crime. Undercover officers may also be present on certain routes. While a passenger might travel many times without seeing a drug dog, the legal reality is that you are subject to federal law while on an Amtrak train. If an officer has probable cause, they can search your person and belongings. Therefore, while there is no universal checkpoint, the presence of drug interdiction efforts is a consistent part of Amtrak's security protocol.