A federal program that sees local police forces hand over immigrant detainees for potential deportation has been found to have no effect on lowering crime rates. Under the U.S. Immigration and Customs Enforcement program Secure Communities, local police share detainees’ fingerprints with the Department of Homeland Security, which can then order immigration holds that result in deportation. But a new study from two law professors shows the program has had “no meaningful reduction” in the overall crime rate of communities involved. The authors say their study “calls into question the longstanding assumption that deporting noncitizens who commit crimes is an effective crime-control strategy.”