603-686-3301 danrockone@gmail.com

Rock One Consulting, LLC is dedicated toward providing the professional attention our clients need for their own success.

Our Principal, Dan Linehan, is a retired New Hampshire State Police Lieutenant and a retired High Sheriff of Rockingham County, New Hampshire. He has over 37 years of law enforcement experience, and an extensive network of professional colleagues to provide you with the information you need for successful decision making strategies.

Dan Linehan is an experienced investigator in matters of pre-employment background investigations, criminal matters, internal thefts, interviews, people searches, witness locating, and other issues where there is a need for experienced, professional help.

Dan Linehan is proud to serve as a Special Advisor consultant to a nationally recognized manufacturer of electric products originally developed for military use, now being adapted for domestic law enforcement purposes. Widespread use of this equipment will enhance our homeland security.

  • New Hampshire State Police, Lieutenant (ret.)
  • High Sheriff, Rockingham County, New Hampshire (ret.)
  • 44th Session Law Enforcement Executive Developments, (LEEDS)
  • F.B.I. Academy, Quantico, Virginia

Contact today by calling (603) 686-3301 or emailing danrockone@gmail.com

What We Offer

  • Litigation Support
  • Consultation
  • Investigations