The police received three anonymous letters in the investigation into the murder of 31-year-old Ralf Meinema, who's body was found in the trunk of a Mercedes pulled out of the Stieltjeskanaal in March last year. Investigators are looking for the writers of these letters, the police said in a statement.
An anonymous letter from a tipster may have stopped a terrorist attack on embassies in the Netherlands in the summer of 2004. This is evident from diplomatic messages released by WikiLeaks.
This past week the police received an anonymous letter from a person who claims to be the mother of the baby girl that was abandoned on Christiaan Huygenstraat in Breda on March 2nd.