Richard W. Guerard, Private Investigator
US Drug Enforcement Administration, Ret.

Mr. Guerard, President/CEO of Guerard Consulting & Investigative Services, is a private investigator providing a full service investigative, consulting and security firm with over 40 years of law enforcement and investigative experience. Licensed, bonded and insured, GCIS provides the highest levels of integrity and confidentiality to serve all of your investigative needs in Massachusetts, New Hampshire, Vermont, Connecticut, Rhode Island and Maine.

Mr. Guerard has forty years of law enforcement and investigative experience. He served for twenty years as a Special Agent, Resident Agent in Charge and Inspector with the U.S. Drug Enforcement Administration. Mr. Guerard has extensive experience relating to matters of law enforcement at the federal, state, and local level.


Services Provided

Specializing in Private Investigations, Executive/Personal Protection and Surveillance, Guerard Consulting & Investigative Services maintain the highest levels of confidentiality and employs highly skilled personnel to serve you with discretion and integrity.

Private Investigations

  • Criminal Records
  • Witness Location
  • Custody Related Investigations
  • Accident Investigations
  • Interviews & Statements
  • General Investigations

Executive Services

  • Armed Executive Protection
  • Surveillance
  • Personal Protection
  • Threat Assessments

Corporate Investigations

  • Background Checks
  • Fraud Investigations
  • Criminal Defense
  • Public Record & Asset Searches

Public Facility Security

  • Site Facility Protection
  • Security Grant Advising
  • Pre-construction Consulting
  • Physical Security Systems


  • We hired Guerard Consulting & Investigative Services to help with a sensitive personal family matter. A member of our family had gone missing for several months. We contacted GCIS, spoke with Rich regarding our concerns and told him of our many unsuccessful attempts to locate this individual. Rich listened, and through outstanding and timely investigative work, GCIS helped us bridge the gap between a father and a lost family member. I think any father would've done the same! I would highly recommend Guerard Consulting & Investigative Services in the future. Thanks Rich and thank you GCIS!
    "J", Milford, MA
  • GCIS is a top notch professional investigative and security company. The security team used during the Christmas season was organized with a great deal of attention to detail. Well organized and discreet, the GCIS team presence made all of our sales associates comfortable, which makes for a fun season of sales
    Marc Sachs, Sachs Jewelers, Shrewsbury, MA
  • I contacted Guerard Investigative Services to help with a personal family matter, requiring a private detective. GCIS was professional, discreet and the quality of the work exceeded my expectations! Would highly recommend GCIS
    "J", Grafton, MA
  • I contacted GCIS for help with a potential business deal that required background information. Mr. Guerard listened, understood the facts and did the necessary research to present a complete report in a timely manner. Because Mr. Guerard did his job so thoroughly I was able to make an informed decision. I highly recommend GCIS for their quality of work and professionalism.
    "A", Northborough, MA
  • I contacted Rick, of Guerard Consulting & Investigative Services back in late June to handle an investigative matter which required thoroughness and accuracy since it's related to a custody and visitation matter. Guerard Consulting & Investigative Services was professional, discreet, timely and very responsive to my concerns. I highly recommend Guerard Consulting & Investigative Services. Consider that your job will be professionally done and all your questions /concerns answered!
    "D", North Andover, MA
  • I contacted GCIS regarding a personal matter. The investigators were professional and well prepared. All work was done in a timely manner, while maintaining the highest level of confidentiality. I would highly recommend GCIS for their investigative expertise and quality of work.
    "L", Shrewsbury, MA