Crime Increase
The resource is the National Crime Prevention Council NCPC
www.ncpc.org/topics/home-and-neighborhood-safety They have many free resources and information.
Your local Police or Sheriff may have a crime prevention officer who will come out and do a free survey.
Target Harden
How are they getting in?
If through windows you can make harder by pining the frame or using a charlie bar. Better lighting makes it undesirable as is trimming landscaping. Thorn bushes are a good deterrent.
Consider installing a couple of cameras that you can access through the internet. If you do install post signage about them prominently.