Bank theft / 18 U.S.C. Sec.2113(b) is a federal offense that involves a person taking money or other property from a federally insured bank without authorization. This includes entering a bank with the intent to commit a theft and/or taking money or other property from the bank without permission or authorization. The crime is punishable by up to twenty years in prison and/or a fine of up to $250,000. There are two types of bank theft / 18 U.S.C. Sec. 2113(b): armed robbery and unarmed robbery. Armed robbery involves the use of a weapon or the threat of a weapon to take money or other property from a bank. Unarmed robbery involves the use of force, intimidation, or deception to take money or other property from a bank.