We are a Denver, Colorado based private investigative firm. We offer law firms, business and government agencies experienced professional services for a wide range of investigative needs. Our team is comprised of experienced former federal, state and local law enforcement professionals.
Please feel free to contact us if you would like more information.
John K. Henderson, CFE, CPP – Investigator – Managing Partner
Mr. Henderson has over 32 years of criminal and civil investigative and law enforcement experience with the United States government. He has conducted and supervised criminal investigations into a variety of offenses including; fraud, narcotics, public corruption, Internal Affairs, money laundering, child pornography, terrorism and violent crimes. He served as an investigator on the FBI’s Joint Terrorism Task Force, and as Assistant Special Agent in Charge with the U.S. Department of Homeland Security. He has expertise in counter-terrorism and transportation security matters.
He served as Director of Internal Affairs with the U.S. Department of Housing and Urban Development, Office of Inspector General; and as Resident Agent in Charge, Internal Affairs with the U.S. Customs Service. In these positions, He oversaw criminal and civil investigations concerning employee misconduct, bribery, fraud and theft as well as internal security, threats and physical security issues. As a Special Agent and Supervisory Special Agent with the U.S. Customs Service, he led investigations into major criminal conspiracies involving fraud, money laundering, narcotics smuggling and child pornography. He has received training in criminal investigations at the Federal Law Enforcement Training Center, Brunswick, GA, the FBI Academy, Quantico, VA as well as specialized training at a variety of venues. Following his federal government career he served as a Criminal Investigator with the Colorado Attorney General’s Office, in Denver, Colorado conducing Health Care Fraud investigations.
Mr. Henderson is a Certified Fraud Examiner by the Association of Certified Fraud Examiners and a Certified Protection Professional by ASIS International. He is a member of the Association of Customs and Homeland Security Special Agents; Intellenet and the International Association of Chiefs of Police.
Ronald C. Humphries – Investigator – Managing Partner
Ron Humphries is a managing partner with Eagle’s Nest Consulting Group, LLC. Mr. Humphries served for over 30 years with the Department of Justice, Bureau of Alcohol, Tobacco, Firearms and Explosives. During his career, he conducted complex investigations of criminal activity including violent crimes, narcotics and firearm violations. As case agent in multiple complex investigations, he handled all administrative functions of case management to include: Undercover operations, search and seizure, surveillance operations, interviews, trial prep, court testimony etc.. He was recognized as the case agent on an investigation that was one of the largest methamphetamine drug busts in San Francisco Division history with a street value of over one million dollars. Mr. Humphries was employed by the Federal Government for over 30 years, and retired from the Bureau of Alcohol, Tobacco, Firearms and Explosives in June 2019 as the Assistant Special Agent in Charge in the Denver Field Division.
Mr. Humphries attended the University of Colorado and Colorado Tech University and holds a Bachelor of Science degree in Logistics Management, and an MBA from National University.
Prior to his career with ATF, Mr Humphries worked as a Logistics Manager for the Department of Defense (DoD) working for both the Navy and Air Force. Mr. Humphries served as a Lt. Commander in the US Navy Reserve and is a veteran of the Gulf war, and Operation Enduring Freedom.
James P. Rasmussen – Investigator – Associate
James Rasmussen is an experienced professional investigator with over 40 
years of law enforcement experience as a Criminal Investigator and Deputy Sheriff, serving with the Eagle and Arapahoe County Sheriff’s Offices in Colorado. Mr. Rasmussen’s assignments included investigations of narcotics trafficking, homicide, theft and fraud. He served on the SWAT team, as an explosives technician and on assignment to the FBI’s Joint Terrorism Task Force.
Mr. Rasmussen served as a criminal investigator with the Colorado Attorney General’s Office for 10 years where he investigated insurance fraud, financial crimes and complex conspiracy cases.
Mr. Rasmussen conducted background investigations on police and fire department applicants for the Aurora Civil Service Commission following his retirement.
Mr. Rasmussen has a B.S. degree in Education from Luther College and is a graduate of the U.S. Army-FBI Hazardous Devices School in Huntsville, AL.
David S. Krupnick, Senior Consultant – Investigations and Training
Mr. Krupnick served as a Senior Liaison Officer to the FBI’s Counter-Proliferation Center, Weapons of Mass Destruction and Counterintelligence Directorates, FBI Headquarters, from the US Nuclear Regulatory Commission (NRC) where he provided information and resource support related to the scope of NRC matters to the law enforcement and intelligence communities. He served on the National Insider Threat Task Force (NITTF), a component of the National Counterintelligence Executive (NCIX) and with the NITTF’s Agency Assistance Subgroup, where he helped coordinate Insider Threat Mitigation Programs. He served as Deputy Director of Investigations with the U.S. Nuclear Regulatory Commission where he oversaw Headquarters operations and the criminal and civil investigative program for the NRC.
As Director of Counterintelligence Programs with the U.S. Department of Energy, Mr. Krupnick oversaw program evaluations and inspections of Counterintelligence equities, including the 19 Department of Energy (DOE) Counterintelligence Laboratory and Plant Offices of DOE and the National Nuclear Security Agency (NNSA). He also served as the Director of the DOE National Polygraph Program and Counterintelligence Evaluations Division (CIED).
As Assistant Inspector General for Investigations, he oversaw the investigative program and administrative operations for the Office of Inspector General for HHS in Washington, DC, including the Special Operations Investigations Unit (Internal Affairs), Inspections Division, Training Directorate (including the Protective Operations Unit which insured the Physical Protection of the Secretary of Health and Human Services), Computer Intrusion Division, Hotline, Real Property and Facility Security and the Budget Division.
Mr. Krupnick may be contacted directly via email: dkrupnick@thestaleygroup.net
Donald A. Bambenek, II, Senior Consultant – Investigations and Security
Mr. Bambenek retired as a Senior Special Agent with the U.S. Customs Service and has more than 30 years of experience in law enforcement and industrial security, specializing in covert operations. He has been involved in international enforcement operations involving the transportation of tons of cocaine from Colombia, tons of Hashish from Pakistan, multi-million dollar money laundering investigations, and apprehension of fugitives in the United States and on foreign soil.
Mr. Bambenek has initiated investigations involving the protection of intellectual property, exposing corporate espionage, supply chain security, and cargo theft. Because of his background, he has been contacted by clients around the country to aid them in identifying violators, making undercover contacts with the violators, and conducting thorough investigations into their illegal activities. Those investigations have been conducted over the internet, the telephone, or through personal contact.
Mr. Bambenek has authored Threat Assessments for airports and seaports. Mr. Bambenek spoke at the Tacoma, Washington, Port Security meeting in the late 1990’s and addressed the issues of narcotics smuggling, weapons smuggling, currency smuggling and intelligence gathering efforts by foreign nationals which were being conducted in this area. He addressed concerns over the lack of Port Security in Seattle and Tacoma at that time. His belief is that a weakness in security makes us more vulnerable to greater threats.
As a U.S. Customs certified Undercover Operative, Mr. Bambenek was responsible for infiltrating several international organizations, which provided valuable intelligence and the ability to control shipments from other countries into the United States and overseas. As a result, Mr. Bambenek was able to coordinate the interception of narcotics and personnel in the United States and abroad. He was responsible for targeted shipments, the apprehension of those shipments, and all security related to the shipments. Where he initiated controlled deliveries, he had the sole responsibility for custody. Whether in international waters, foreign countries, or United States territories, he was responsible for the safety and security of suspects and witnesses under his care. While assigned to Secret Service details, WTO, and APEC, he was responsible for dignitary protection.
Mr. Bambenek conducted background investigation for U.S. Customs and the Department of Defense for potential employees and civilian contractors. He performed security investigations to aid the government in determining an individual’s suitability for a security clearance and/or the organization’s suitability.
Mr. Bambenek also has a distinguished background in Loss Prevention, working for major corporations and recovering substantial losses resulting from internal and external theft. This was accomplished by bringing federal, state, and local investigators into his investigations and communicating directly with the prosecutor and thereby securing restitution.
You may contact Mr. Bambenek by emailing him directly at don@bambenekinvestigations.com.
William F. Blake, CPP, CFE – Senior Consultant, Security and Training
Mr. Blake, a native of Vermont, is a graduate of Michigan State University, East Lansing, Michigan, with a Bachelor of Science degree in Police Administration. He also ho
lds a Master of Science degree in Foundations of Education from Troy State University, Troy, Alabama.
He is a retired Chief Warrant Officer of the U.S. Army where he served as a Military Intelligence Special Agent and a Criminal Investigation Division Special Agent in supervisory and management positions. While a member of the U.S. Army, he was responsible for designing and implementing a revised and expanded curriculum for the criminal investigation course attended by members of the Department of Defense. As a military instructor, he was responsible for instruction in investigative, administrative and management subjects to investigators, managers and senior military officers.
Following retirement from the U.S. Army, Mr. Blake was employed as a security officer with a hospital before accepting a position as Security Manager and Investigator for a major bank. In this capacity, he was responsible for physical security, guard force operations, and investigations. Following a merger with another financial institution, he was assigned as a Regional Security Manager with responsibility for 35 locations.
Mr. Blake has more than 50 years experience in civil and criminal investigations, bank security, executive protection, loss prevention, disaster recovery planning, counterintelligence operations, security risk analysis, and security training.
Mr. Blake has been designated as a Certified Protection Professional (CPP) by the American Society for Industrial Security and as a Certified Fraud Examiner (CFE) by the Association of Certified Fraud Examiners.
Author: “Making Recovery A Priority,” Security Management, American Society for Industrial Security, April 1992; “Securing Premises from Liability Risks,” Risk Management, Risk and Insurance Management Society, September 1994; “Putting a Lid on Premises Liability,” Security Management, American Society for Industrial Security, January 1996; “Safety First: A Premises Liability Primer,” Journal of Property Management, Institute of Real Estate Management, July/August, 1996, (Journal of Property Management Non-Member Article of the Year Second Place Award, 1996); “Security Personnel: Cost Versus Quality,” Journal of Property Management, July/August, 1998; co-author with Walter F. Bradley, Esq., JD, Premises Security: A Guide for Security Professionals and Attorneys, published by Butterworth-Heinemann.
Mr. Blake may be contacted via email at billblake2@aol.com or telephone at 303-601-3998.
Joseph DeAngelo, Senior Consultant – Training
Mr. DeAngelo, a 26 year law enforcement professional, recently retired from the Colorado Attorney General’s Office with 20 years as a criminal investigator at the local, state and federal level. He has also worked as an SIU investigator for a major insurance company. Mr. DeAngelo specialized in public corruption, child sex abuse investigations and crimes against the elderly and disabled. Mr. DeAngelo has two master’s degrees and a graduate certificate in: a) Human Development (forensic psychology research emphasis), b) Criminal psychology, and c) Child sex offender behavioral characteristics, from Fielding Graduate University and Regis University respectively. Mr. DeAngelo has also been an adjunct professor at Regis University where he instructed numerous graduate level courses related to criminal/forensic psychology along with scores of presentations at local, state and national conferences related to all manner and variety of training topics in criminal investigations. He specializes in linguistic – word – analysis (assessing veracity through analyzing the spoken and written word). The student only needs to have a basic knowledge of the English language. With that basic knowledge, through a full or half day training, your investigators/staff will have applicable real world skills that will greatly assist in detecting deception. The skills can be used in all aspects of life from professional to personal relationships. But most importantly the skills can assist in developing and maintaining honest employees and working with quality vendors. After the course DeAngelo is available for future consultation.
