New data that show the number of detainers issued by Immigration and Customs Enforcement agents indicate that immigration enforcement efforts are down in recent months. The data issued by a government watchdog project at Syracuse University shows a considerable deterioration in enforcement levels since 2011. In the first four months of FY 2013, ICE agents issued an average of 18,427 detainers per month - down nearly 20% from the same period in FY 2012.