The first Presidential Decree that Putin signed, on 31 December 1999, was titled "On guarantees for the former president of the Russian Federation and the members of his family". This ensured that "corruption charges against the outgoing President and his relatives" would not be pursued. This was most notably targeted at the Mabetex bribery case in which Yeltsin's family members were involved. On 30 August 2000, a criminal investigation (number 18/238278-95) in which Putin himself, as a member of the Saint Petersburg city government, was one of the suspects was dropped. On 30 December 2000, yet another case against the prosecutor general was dropped "for lack of evidence", despite thousands of documents having been passed by Swiss prosecutors. On 12 February 2001, Putin signed a similar federal law which replaced the decree of 1999. A case regarding Putin's alleged corruption in metal exports from 1992 was brought back by Marina Salye, but she was silenced and forced to leave Saint Petersburg.