According to the University of Washington’s College of Environment, calls to police were down

20% in neighborhoods were they did clean ups (see link below).

If you would like to work with SOC to coordinate a clean up on your block, neighborhood, vacant lot, or park – contact the SOC office at (414) 672-8090 or S[email protected]. SOC can help you:
  • organize the clean up,
  • get equipment and supplies,
  • partner with other neighbors and community members like businesses and organizations,
  • and get thank you gifts for participants (as supplies last)
https://depts.washington.edu/hhwb/Thm_Crime.html