Pulver Investigation and POLYGRAPH is a well-established licensed private investigator in Spokane, WA, providing professional investigation services to meet and exceed client expectations. Our team offers asset location, background checks, business surveillance, and polygraph testing, among other services. With a commitment to confidentiality and quality work, we help clients solve their problems by providing evidence and proof. From insurance fraud investigations to identity theft, our experienced investigators are equipped to handle a wide range of cases.