ADT Commercial continues its strategic M&A strategy, expanding its nationwide geographic footprint and deepening its capabilities to serve mid-market, national and large-scale commercial customers in New York and New Jersey with the announcement it has purchased Deterrent Technologies, Inc., based out of Ocean, NJ. Established in 1982 by David and Carol Hersh, Deterrent Technologies, Inc. has been a premier leader in designing, installing and servicing comprehensive physical security and life safety systems.