 Curran — who had met Buchanan many times and regarded him as a friend — was worried and duly informed Eugene Crowley, the assistant commissioner of crime and security at Garda headquarters in Dublin, about the threat.Curran never told Buchanan about the threat as he didn't want Buchanan to think that the Garda Síochána was trying to stop him coming to the Republic.In 1987, Buchanan had called to Curran's office to discuss RUC concerns about the Garda detective sergeant at Dundalk station who was "unnecessarily associating" with the IRA.