 The case against him was withdrawn twice, the second time in July 2008 when his trial collapsed, leading to reports that the convicted drug dealer had been assisted by gardaí (members of An Garda Síochána).The publicity around this matter led to the Garda Síochána Ombudsman Commission's widest, longest and costliest inquiry, with the Ombudsman sending the Kieran Boylan file to the Director of Public Prosecutions (DPP) In December 2012.In May 2013, the investigation concluded with no evidence established of any improper conduct by gardaí.