An affair and a Tucson divorce: what the evidence really changes

Couple leaving a Tucson restaurant at dusk, the public kind of moment an infidelity investigation records

People call private investigators in Tucson about a suspected affair more than almost anything else, and the first honest thing a good one will tell you is this: in an ordinary Arizona divorce, the affair itself probably will not change the outcome. That surprises people. It is also why the useful version of this work looks different from what most callers picture.

This is general information. Before you spend money on surveillance for a divorce, ask a family lawyer what evidence would actually matter in your case.

Why "proof" matters less than you think

Arizona is a no-fault state. Under A.R.S. 25-312, the Pima County Superior Court grants a divorce when it finds the marriage is "irretrievably broken," meaning there is no reasonable prospect of reconciliation. Nobody has to prove adultery, cruelty or anything else to get divorced. If one spouse says under oath the marriage is broken and the other denies it, the court can hold a hearing and even order a conciliation conference, but the question is still whether the marriage can be saved, not who was unfaithful.

The exception is covenant marriage. Couples who chose a covenant marriage can only divorce on the grounds listed in A.R.S. 25-903, and adultery is the first of them (so is mutual agreement, which is worth knowing). If you are not sure which kind of marriage you have, a lawyer can find out and tell you what it changes.

When it does matter

An affair can still be relevant, just not as a moral scorecard. A private investigator's findings tend to matter in Tucson divorces in a few situations.

Money. If marital funds are paying for hotel rooms, gifts, travel or a second apartment, that spending can matter when the court divides community property. Records and a clear timeline are more useful here than photos of two people at dinner.

The children. Arizona courts decide legal decision-making and parenting time on the child's best interests, under A.R.S. 25-403. A new partner is not a factor in itself. But if that partner has a history that worries you, or the children are being left alone, or being driven by someone who has been drinking, those facts can matter. Our piece on custody evidence in Pima County goes further into that.

Honesty in the case itself. If a spouse is hiding income or assets, or tells the court something the investigator can show is untrue, that matters to a judge.

And sometimes it is personal. Some people simply want to know before they decide whether to file. That is a legitimate reason to hire someone, as long as you go in knowing the answer may not move the legal needle.

What a licensed private investigator can do

In Arizona, private investigators are licensed by the Department of Public Safety. A licensed investigator can watch and photograph someone in public, such as a car in a parking lot on Oracle Road or a couple walking out of a restaurant on Fourth Avenue. They can search public records, look into business filings, and interview people who are willing to talk. They write it up in a report that a lawyer can use.

Surveillance in a city the size of Tucson takes time and usually more than one vehicle, and the useful information is often dull: what time a car left, where it parked, how long it stayed.

What they will not do (and what you should not do either)

The law draws hard lines here, and a reputable investigator respects them.

GPS trackers. Under Arizona's stalking statute, A.R.S. 13-2923, using a GPS or other electronic device to surveil a specific person without authorization, continuously for 12 hours or more or on two or more occasions, can count toward stalking when it causes fear or emotional distress. Putting a tracker on a spouse's car on your own is a good way to hand the other side a weapon. Ask your lawyer before anyone tracks anything.

Private places. A.R.S. 13-3019 makes it a felony to secretly record someone in a bedroom, bathroom or other place where they expect privacy while they are undressed or in sexual activity. No exception exists for investigators. Photos through a bedroom window are not evidence; they are a crime.

Phones and accounts. Logging into your spouse's email, social media or phone without permission can create legal exposure of its own. An investigator will not do it, and you should not either.

Hiring in Tucson

Ask to see the investigator's licence, then check it yourself on the DPS Public Services Portal. Our guide to verifying an Arizona private investigator licence shows how. Ask how they report, how often they update you, and whether they have testified in Pima County before.

The Tucson private investigators page lists private investigators working the city. Each is a member of the Arizona Association of Licensed Private Investigators (AALPI). Lookiloo Investigations and Consulting is one of the Tucson-based firms listed. More on local services is on the Tucson town page.

Before the first call, write down three things: the dates and places you suspect, what you want the evidence for, and what your lawyer said would help. Those three lines decide how many hours of surveillance you actually need.

See the board: everyone in Tucson · private investigators only.