A colleague of accused UBS rogue trader Kweku Adoboli was interviewed by police as a suspect, a London court heard yesterday. Simon Taylor, who was a junior trader on the ETFs desk, was cross-examined by Adoboli's lawyer Charles Sherrard. It emerged during the hearing that Taylor was interviewed by police in April 2012 under caution. The prosecution said Taylor had not been arrested and his interview was voluntary. He has not been charged with anything.