This document discusses upgrading existing windows with security film laminates as part of a CPTED (Crime Prevention Through Environmental Design) approach. It notes that windows are often the weakest link for break-ins and home invasions. Applying security film laminates can deter crime, reduce risks and liabilities from glass breakage, provide blast mitigation protection, and enhance life safety, while allowing clear views of windows. The film upgrades complement other CPTED concepts by hardening the target and fixing what is often the weakest link - existing glass windows.