JPMorgan Chase & Co. (JPM) put another of its mortgage-bond traders on leave, the latest in a string of suspensions amid regulatory scrutiny of the market, according to three people with knowledge of the move. The employee, Joshua Banschick, was told not to come in during the past week, said the people, who asked not to be named because the decision wasn’t public. The trader has worked at JPMorgan since 2008, after spending about a year at Bear Stearns Co., the securities firm bought by the bank that year with assistance from the Federal Reserve, according to Financial Industry Regulatory Authority records. Banschick, who hasn’t been accused of any wrongdoing, declined to comment when reached on his mobile phone. Brian Marchiony, a spokesman for New York-based JPMorgan, said the bank…