By Brenna Hughes Neghaiwi and John O’Donnell ZURICH (Reuters) – Swiss judges are set to rule on Monday whether Credit Suisse failed to prevent money laundering linked to an alleged cocaine trafficking gang in Switzerland’s first criminal trial of one of its major banks. Credit Suisse and one of its former employees face charges of allowing an alleged Bulgarian cocaine trafficking gang to launder millions of euros from 2004 to 2008. The case – which included testimony on murders and cash stuffed into suitcases – centres on relationships that Credit Suisse and its ex-employee had with former Bul…