Chipotle says federal investigators have broadened the scope of a criminal probe of its food-safety practices going back to Jan. 1, 2013. The Denver-based chain was served with another
subpoena on Jan. 28 by the U.S. Attorney’s Office for the Central District of California requiring Chipotle to produce documents and information about the company’s practices at all
restaurants systemwide. The more recent subpoena supersedes an earlier one served in December.
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