A four-year probe of potential price manipulation in the silver market may be completed as early as September, according to Bart Chilton, a member of the U.S. Commodity Futures Trading Commission. The enforcement division of the Washington-based agency, the main U.S. overseer of derivatives markets, began pursuing allegations of manipulation in the silver market in September 2008. Investigators have analyzed more than 100,000 documents and interviewed dozens of witnesses, the CFTC said in a November 2011 statement. Chilton, who didn’t say whether the probe has uncovered evidence of manipulation, said previously that there had been “repeated attempts” to influence prices. CFTC
