Los Angeles: The Las Vegas man accused of stealing underpants and G-strings from Australia's Thunder From Down Under strippers and then shooting at them was faking mental illness, a court has been told.

Joey Kadmiri, 25, was declared competent by two doctors to stand trial.

Joey Kadmiri arrives in court in Las Vegas earlier this year. Credit:AP

"One said he's pretending to be incompetent," Clark County District Court judge Linda Marie Bell said during a hearing on Friday, Associated Press reported.

Mr Kadmiri, who has been in custody since the March 18 incident at the Excalibur Casino on the Vegas strip, refused to leave his cell for the hearing.