Attorney General Jeff Sessions this week announced a program aimed at combating opioid-related health care fraud, the Associated Press reports.

Twelve federal prosecutors will be sent to cities hit hard by opioid addiction. They will analyze data to identify and prosecute individuals that are contributing to the prescription opioid epidemic, Sessions said. They will aim to find “pill mills” and track down physicians and pharmacies that illegally prescribe or distribute opioid painkillers.

In a statement, Sessions said the Opioid Fraud and Abuse Detection Unit “can tell us important information about prescription opioids—like which physicians are writing opioid prescriptions at a rate that far exceeds their peers; how many of a doctor’s patients died within 60 days of an opioid prescription; the average age of the patients receiving these prescriptions; pharmacies that are dispensing disproportionately large amounts of opioids; and regional hot spots for opioid issues.”