Littlejohn Services, LLC is a licensed and insured Private Investigation Agency, able to conduct investigations in Washington, Oregon, California and Idaho. Services include, but are not limited to: background investigations; internal investigations; confidential interviews; and, polygraph examinations.

Bob Littlejohn is a polygraph examiner and a licensed investigator. Bob recently retired after serving over 32 years with a large Northwest Police Department, the last 16 years spent in the Personnel Services unit as a Background Investigator and as Hiring Coordinator in charge of background investigations and hiring. In addition, Bob is a polygraph examiner having attended Western Oregon University School of Polygraph, graduating number one in his class. Since graduation he has administered pre-employment screenings and criminal polygraphs on a regular basis. He has extensive training and practical background in employment law and is Reid trained in interview and interrogation techniques. He is a member of the American Polygraph Association, American Association of Police Polygraphists, and the Northwest Polygraph Examiners Association.

Julie Littlejohn is a Certified Paralegal, having graduated from the paralegal program at Edmond's Community College and is a licensed private investigator. She is Reid trained in interview and interrogation techniques and has extensive training in Background Investigation. She also worked for the same Northwest Department and is familiar with records systems and confidentiality in both the public and private sector