Just Google it. Wikapeadea always lists the crime rate. or just ask Google "what is the crime rate in Clifton Park. I did. The answer was 9 in 1,000. That includes all types of crime...like property crimes. They say that is very low, very good, and safe.
Coming from Los Angeles, that is a breath of fresh air for me. Speaking of which, the air quality is good too!
I am hoping to move to Clifton park this Summer. Perhaps we'll be neighbors. Best of luck.