a 22-year-old marrickville man was arrested in possession of 441 mdma tablets at ` midnight mafia ' -lrb- stock pic -rrb- .
around 6000 people attended the all-night rave which ran from 10 pm saturday until 6 am the next morning .
police were targeting the use and supply of prohibited drugs at the venue .
he has been charged with possession of mdma tablets and three others were issued criminal infringement notices .