channel 7 perth reporter monique dirksz got the scoop on cousins ' arrest .
she was the only journalist outside freemantle police station at 2 am .
constable daniel jamieson is said to have been dating her at the time .
he has been charged with four counts of disclosing official secrets .
the policeman allegedly looked up the information on a police computer .
cousins was arrested on march 11 over an alleged low-speed chase .
` hundreds ' of officers are said to have unlawfully accessed the documents .
police also reportedly looked at the files of former afl player daniel keer .
an internal investigation is currently underway .