I did a little more research into crime statistics than jrc, so that we might base our discussions on fact rather than anecdotal evidence or unsubstantiated opinions. Here are data in graphical form from 1960 to 2000 for the state of NH.
NH crime data from
http://www.disastercenter.com/crime/nhcrime.htm
Note in the right-hand graph, population is the steadily increasing trend. It is interesting that when adjusted for population growth, the incidence of crime decreases for the 90's decade.
Laconia NH crime data from
http://www.laconiapd.org/stats.html
Note that Laconia data does not include an adjustment for population. Data only covers 1998 to 2003; the Lakes Region DOC Facility opened in 1991. (sorry for the screwy Excel x-labeling.)