Forensic scientists “put to the pin of their collar" during serial killer's trial, State tells appeal

Mark Nash is appealing his 2015 conviction for the murder of two women whose bodies were discovered in sheltered accommodation in Grangegorman twenty years earlier. Nash was found guilty at the Central Criminal Court and received a mandatory life sentence. He had already been serving life imprisonment for two murders committed in Ballintober, County Roscommon in 1997. At the Court of Appeal hearing, Nash's counsel…