The analyses of data support the hypothesis that the State Criminal Alien Assistance Program (SCAAP) funds would be associated with reductions in serious crime and indicate that SCAAP funds were associated with reductions in robbery, burglary, and several other Uniform Crime Report (UCR) Part 1 offenses. The findings also suggest that crime reduction outcomes were associated with the Office of Community Oriented Policing Services (COPS) hiring, COPS MORE grants, and local law enforcement Block Grants. The SCAAP was designed to reimburse thousands of local jails and prisons for incarceration of illegal immigrants with prior criminal convictions. In this first evaluation of SCAPP funding, it was hypothesized that these funds would be associated with reductions in serious crime. Crime reduction outcomes of the SCAPP were tested using 12 years of panel data from 10,339 jurisdictions. Tables, appendix, notes, and references