• For a private investigator in Phoenix, call Inter-State Investigative Services at (602) 358-7759.
  • For Tucson, call Inter-State Investigative Services at (520) 882-2723.
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Inter-State Investigative Services is a private investigation firm helping clients across Arizona for over 25 years.
Call Us Today! 800.729.0311

Inter-State Investigative Services is a private investigation firm based in Arizona with offices in Phoenix and Tucson. We provide a full range of services in a variety of different fields, including criminal and civil defense, domestic investigations, pre-employment background screenings, insurance investigations and more.

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Inter-State has been in business for over 25 years and we are proud to say we have an A+ rating from the Better Business Bureau. We are licensed and insured. Our team of investigators is comprised of individuals from many different professional and educational backgrounds. We employ both male and female investigators and have Spanish-speaking investigators if your case warrants such a service.
 

Since 1994 we’ve helped countless clients resolve their personal or legal matters with efficiency, accuracy, and empathy. Because we value the privacy of our clients greatly, our investigations are always conducted with the utmost privacy and discretion in mind.
 

We are a team of private investigators that handle cases state-wide and across the nation. We maintain a vast network of trusted vendors and investigators across the nation and therefore have the capacity to, and frequently do, perform investigations in different states across the nation.
 

Though many of our clients are attorneys and insurance companies, we also frequently work for private citizens with personal matters that require investigation. Believe us when we say there is no case too big or too small – we treat all cases with equal care, attention, and respect. If you have a problem that may require an investigator, give us a call and see how we can help. We are professional, discrete and courteous.

  

For a private investigator in Phoenix, call Inter-State Investigative Services at (602) 358-7759 or for Tucson, call Inter-State Investigative Services at (520) 882-2723. If you are not located in Southern Arizona, you can call us toll-free at (800) 729-0311.

Civil Cases

Providing the highest standard of investigative expertise for any client, be it the plaintiff or defendant
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Criminal Cases

Providing clients our investigative expertise and experience in criminal matters ranging from capital offenses to misdemeanors
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Insurance Cases

Exceptional insurance claim and fraud investigations. Contact Us for more information or Submit your claim today.
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Romance Scams: The (not so) Good, the Bad, and the Ugly

February is almost here and Love is in the air! Millions of singles are putting their efforts to find love into overdrive because, let’s face it, no one wants to be solo on Valentine’s Day. Lucky for today’s singles, the internet has vastly widened the dating pool and has made …

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Brandy •February 4, 2019General Interest

How To Locate An Individual – The Basics (Part Three)

  In my preceding post, I provided you with some “do-it-yourself” advice about how to locate an individual.  Hopefully that information was useful, and in an easy case it should in fact do the trick.  However, if you are dealing with an individual who does not want to be found, …

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Jessica Wodecki •July 19, 2018IISAZ Blog, Locate

How To Locate An Individual – The Basics (Part Two)

In my prior post, I promised to provide you with some “do-it-yourself” advice about how to locate an individual.  There is actually a great deal that anyone with access to the internet, a telephone, and/or an automobile can do to help himself in this regard.  So let’s dive right in. …

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Jessica Wodecki •June 28, 2018Background Screenings, IISAZ Blog

How To Locate An Individual – The Basics (Part One)

In this series of posts, I’m going to address the fine art of “locates,” one of the bread-and-butter activities of a professional private investigator.  In this first post, I’m going to discuss some of the typical reasons why a person may need to be located, and in the next two …

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Jessica Wodecki •June 12, 2018General Interest, IISAZ Blog Locate

Pre-Indictment Defensive Investigations:

An Ounce of Prevention Versus a Ton of Cure Guilty people get charged with crimes every day.  But what happens when an innocent person is accused of, and being investigated by authorities for, the commission of a serious crime?  All too often, the accused simply enters into a state of …

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Jessica Wodecki •March 16, 2018General Interest, IISAZ Blog

CUSTODY BATTLEGROUND, PT 2

  What To Do About A Toxic Parent   Know Thy Enemy – Sun Tzu. If you are ready to divorce, it is safe to say that you’ve had it up to here with your spouse.  If you have children, you may well also think that your spouse is a …

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Brandy •August 25, 2017Criminal Cases
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Inter-State Investigative Services - Licensed and insured since 1994, AZ DPS License #1002154 Copyrighted, All Rights Reserved

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