Accomplice, in law, a person who takes part with another in a crime either as a principal or as an accessory. In a criminal trial the general rule is that a defendant cannot be convicted on the unsupported testimony of an accomplice.
Interpol is an international police agency that tracks criminals across national borders. Lean about Interpol and find out how Interpol is organized.
With modern security, how can thieves walk out of a museum with millions of dollars worth of art? It usually just takes force and a little bravado.