The head of Bulgaria's anti-mafia bureau was charged with corruption on Friday after documents surfaced indicating he protected drug traffickers in exchange for thousands of euros, prosecutors said. Between 1999 and 2002, before he became director of the GDBOP anti-mafia bureau in 2009, Stanimir Florov apparently had irregular dealings with drug traffickers and traffickers of other illegal goods, the Sofia prosecutor's office said, citing documents it had received from an anonymous source.