Jackson, Rebecca2018-06-122018-06-122018-05-04https://hdl.handle.net/1813/57303The primary question of this analysis is whether policies that create a streamlined deportation process for unauthorized immigrant offenders decrease crime rates. Using the policy variations of Section 287(g) of the Immigration and Nationality Act and the Secure Communities program, I estimate the effect of immigration policy enforcement on crime rates using a difference-in-difference strategy. The results are congruent with previous immigration enforcement literature estimating that neither program had a meaningful effect on crime rates. While there is no strong evidence pointing to negative effects of the programs on crime, certain specifications and subsamples analyzed in this paper show that the 287(g) program may be associated with an increase in crime. I suggest that this effect may be driven by changes in crime detection and recommend replication with more precise crime and victimization data to strengthen the estimates and provide evidence for understanding the mechanisms through which these programs operate.en-USImmigration Enforcement and Crime: Evidence from the 287(g) and Secure Communities Programsdissertation or thesis