Searching for a private investigator? Jeff, and his team at Quantum Investigations, are one of the most successful private investigators in Phoenix Arizona. Jeff is former military and former Phoenix PD and he opened his Phoenix private eye service in 2006. Overall, he has over 23 years of Arizona PI experience. He specializes in surveillance services, home surveillance, and fugitive recovery, and asset retrieval. Another one of our areas of expertise is cheating spouse investigation. If you suspect infidelity and wish you catch your cheating husband or cheating wife, then give us a call. We’re here to help. We also do background investigations, criminal defense investigations, and missing persons cases. We can help you to locate deadbeat parents, bail jumpers, runaway teens, and others who are attempting to hide on purpose. If you need someone to put their lives on the line to give you answers, then call us for a free consultation. We look forward to hearing from you--Today!