Chipotle says it has been served with a federal grand jury subpoena as part of a criminal investigation tied to a norovirus outbreak this summer at one of its restaurants in California.
- Dec. 2015: Amid Illness Woes, Chipotle Says 'Food With Integrity' Is Possible
- Also: What The Chipotle Outbreak Tells Us About Our Food Safety System
The investigation is being conducted by the U.S. Attorney's Office for the Central District of California in conjunction with the Food and Drug Administration, the company said in a filing with the Securities and Exchange Commission Wednesday.
