A chronic drug addict's six year sentence, which had been suspended in July 1998, has been reactivated by Judge Elizabeth Dunne at Dublin Circuit Criminal Court. William O'Keeffe (29), of Tallaght, Co Dublin, pleaded guilty to several syringe-point robberies last November and in January and has more similar-type offences pending. Judge Dunne put these new cases back for mention on December 13th.