Warrant of attachment authorises police to seize and sell movable property to realise forfeited bond when payment is not made. When a person has failed to appear pursuant to recognizance and forfeited the bond penalty, and after due notice has failed to pay or show sufficient cause, the warrant authorises the police to attach movable property within the specified district by seizure and detention, and, if the amount is not paid within the time specified, to sell so much of the attached property as may be sufficient to realise the forfeited amount, with immediate return to the issuing court of what has been done under the warrant.