These tactics are as old as international drug smuggling itself. Howard Marks(Mr Nice)[0] says in his book that he stationed one of his associates in Amsterdam

These tactics are as old as international drug smuggling itself. Howard Marks(Mr Nice)[0] says in his book that he stationed one of his associates in Amsterdam to operate as a communications node, he finds out later that the Dutch police had tapped the phone lines within weeks. [0]https://en.wikipedia.org/wiki/Howard_Marks https://en.wikipedia.org/wiki/Howard_Marks