However, this meant that the justice meted out by the Star Chamber could be very arbitrary and subjective, and it enabled the court to be used later on in its history as an instrument of oppression rather than for the purpose of justice for which it was intended. Many crimes which are now commonly prosecuted, such as attempt, conspiracy, criminal libel, and perjury, were originally developed by the Court of Star Chamber, along with its more common role of dealing with riots and sedition.