From Chipotle’s 10 Q: Receipt of Grand Jury Subpoenas:

On January 28, 2016, we were served with a Federal Grand Jury Subpoena from the U.S. District Court for the Central District of California in connection with an official criminal investigation being conducted by the U.S. Attorney’s Office for the Central District of California, in conjunction with the U.S. Food and Drug Administration’s Office of Criminal Investigations. The subpoena required the production of documents and information related to company-wide food safety matters dating back to January 1, 2013. Since then we have received two other subpoenas on the following dates requesting information related to illness incidents associated with the following specific restaurants: July 19, 2017, requesting information about a single Chipotle restaurant in Sterling, Virginia; and February 14, 2018, requesting information about a single Chipotle restaurant in Los Angeles, California. On April 18, 2019, we received a new subpoena requesting information related to illness incidents associated with the specific restaurants in Simi Valley, California, Boston, Massachusetts, Sterling, Virginia, and Los Angeles, California that were covered under the previous subpoenas, plus one additional restaurant in Powell, Ohio. We have fully cooperated and intend to continue to fully cooperate in the investigation. It is not possible at this time to determine whether we will incur, or to reasonably estimate the amount of, any fines or penalties in connection with the investigation pursuant to which the subpoenas were issued.

CMG (Chipotle Mexican Grill Inc.) (10-Q) 2019-04-25