Truth Investigations is owned and operated by Walter Martin, a retired Smithfield Police Department Investigator with 26 years of investigative experience. We conduct investigations only and our focus is providing you a quality investigation at an affordable price. Walter MartinI was regarded by many as one of the best investigators in Johnston County during his law enforcement career. Walter has a great deal of courtroom experience because he investigated some of the most serious offenses that occurred in Smithfield for over two decades.Walter knows that tricks often do not work, nothing replaces a thorough investigation, nothing!