Penalties for breaking the law can be more severe than in the United States for similar offenses. Persons violating Greek law, even unknowingly, may be expelled, arrested or imprisoned. If arrested, you may spend up to 18 months in pre-trial confinement. Penalties for possession, use, or trafficking in illegal drugs are strict, and convicted offenders can expect jail sentences and fines. The removal of antiquities, including rocks from archaeological sites, is forbidden.
Penalties range from large fines to prison terms.
U.S. citizens who are also considered to be Greek citizens may be subject to compulsory Greek military service and other aspects of Greek law while in Greece. Greek-Americans should inquire at the Greek Embassy or a Greek consulate to determine their status before traveling to Greece. In some instances, dual nationality may hamper U.S. Government efforts to provide protection abroad. Most are announced in advance and are of short duration. Reconfirmation of domestic and international flight reservations is highly recommended.