It seems that the producers of the US version of Big Brother 2 failed to discover that one of the housemates had been arrested five times in the past.
The charges in all cases were dismissed.
Last week, the housemate in question, Justin Sebik was kicked off the show for pulling a knife on a female contestant.
He insists he was just 'playing'.
The revelation has sparked debate on whether TV networks are thorough enough in their background checks on contestants.
