A veteran of the New York City Police Department’s elite Technical Assistance Response Unit (TARU), Tom Dempsey’s expertise is in installing and detecting state of the art surveillance equipment.

During his career with the NYPD, Mr. Dempsey participated in, and managed, a number of electronic surveillance operations. He was responsible for testing, purchasing, and deploying all new electronic surveillance equipment used by the elite NYPD Detective Squad assigned to work with legendary New York County District Attorney Robert Morgenthau. He oversaw sweeps, covert entries, covert vehicle installations, and covert installation of audio and visual devices for some of the most sensitive cases in Manhattan.

His two decades with the NYPD also enabled him to work closely with, and develop strong contacts with, the federal and local law enforcement community. He also provided investigative support, evidence procurement, and courtroom testimony for multiple detective squads and developed a deep understanding of varied security operations, surveillance strategies, and audio/visual surveillance techniques.


Sage is large enough to tackle any task, but small enough to provide you with the personal service you deserve.

  • NY (212) 267-0028
  • FL (305) 394-9967
  • 261 West 35th Street
    Suite 404
    New York, NY 10001
  • 14850 NW 44th Court
    Miami, FL 33054