With the bribery conviction of former Justice Gerald P. Garson in hand, Brooklyn District Attorney Charles J. Hynes said Friday that “the end game” of his office’s four-year probe into the buying and selling of judgeships is about to begin.

Hynes said Garson and former Assemblyman and Brooklyn Democratic county Chairman Clarence Norman hold the “keys” to proving allegations that candidates have had to pay $50,000 or more to obtain judgeships, stories that “have been around longer than you or me.”