I've become a member of the
NSPC (National Shoplifting Prevention Coalition).
From the NSPC website:
The National Shoplifting Prevention Coalition (NSPC) harnesses the collective efforts of retail and corporate entities, justice and law enforcement agencies and schools and community groups in a nationwide, non-partisan alliance to address shoplifting. The purpose of the Coalition is to institute a coordinated effort to improve the way our nation and local communities regard, prevent and respond to shoplifting.
I've only had a short time to look through the resources available as member, but the amount and quality of reference information and statistical information is great.