( CNN ) -- Actress Amanda Bynes stared with a blank , wide-eyed expression at reporters seated behind her in a New York courtroom Tuesday . It was a brief court appearance for the 27-year-old Bynes , required only so the judge could set a date for another pretrial hearing . She faces three misdemeanor charges relating to an incident involving a bong allegedly tossed from her Manhattan apartment on May 23 . Bynes wore a waist-length aqua and blonde-colored wig from her unusual collection of hair pieces , a tank top , sweatpants and sneakers as she stood silently before the Manhattan Criminal Court judge . She left with her lawyer after the judge set her next court hearing for September 26 . A date for a trial , if necessary , has not been decided . Police charged Bynes with tampering with physical evidence , reckless endangerment and criminal possession of marijuana after they were called to her building in Manhattan 's theater district . The building manager reported she was smoking an `` illegal substance '' in the lobby , police said . Police knock down Bynes sex harassment claim . Bynes had headed back to her apartment by the time police arrived , but she let officers in when they knocked on the door , they said . Once inside , the officers noticed a bong and other marijuana paraphernalia sitting on a coffee table , which Bynes immediately started to throw out a window , police said . Police charged her with tampering with physical evidence , reckless endangerment and criminal possession of marijuana . The endangerment stems from the possibility that the tossed paraphernalia could have hit someone below . Bynes told followers on Twitter that the police account was `` all lies . '' Her story is that she was `` sexually harassed by one of the cops the night before last '' -- the same police officer who , she wrote , ended up arresting her . New York police later said an internal affairs investigation found no evidence of the sexual harassment claim . Bynes has a DUI case pending in Southern California , while a pair of separate hit-and-run charges against her were dismissed late last year . She was sentenced to three years ' probation for driving on a suspended license in May . A young teenager when she burst on the scene as the lead in Nickelodeon 's `` The Amanda Show , '' Bynes also starred alongside Jennie Garth in the sitcom `` What I Like About You . '' She later scored roles in movies , including `` Hairspray '' and `` Easy A . '' Amanda Bynes in trouble , again . CNN 's Doug Ganley contributed to this report .
Amanda Bynes ' court appearance was brief Tuesday . The defendant faces three misdemeanor charges related to an exploding bong incident . Bynes tweeted the words ' are ` ` all lies ''