Australia has granted asylum to a former senior Thai police officer investigating human trafficking, who was subject to death threats and intimidation after exposing the crimes of influential government and security officials.   The intimidation of Pol Maj Gen Paween Pongsirin began during his role as senior investigator into the trafficking of Rohingya Muslims in a case that involved 153 suspects and 103 defendants (62 of whom have been convicted) —Thailand’s largest human trafficking case.    The defendants included senior mili