Divorce is hard enough on its own. But when you suspect your spouse isn’t being honest about what they own or earn, it can feel impossible to know where to turn. You might have seen a sudden drop in their declared income, noticed assets disappearing, or simply have a feeling that something doesn’t add up.

If that sounds familiar, you’re not alone. A private investigator may be able to help — though it’s worth understanding exactly what they can and can’t do before you pick up the phone.

Why Do Spouses Hide Assets During a Divorce?

In New Zealand, both parties in a divorce are legally required to disclose their full financial situation. That includes income, property, savings, and debts. In practice, however, not everyone plays by the rules.

Some common tactics include:

•       Claiming a lower income than they actually earn
•       Transferring money or property into a friend’s or family member’s name
•       Undervaluing assets like vehicles, equipment, or a business
•       Spending large amounts of cash to reduce what’s on paper
•       Taking on fake debts to make finances look worse than they are

These tactics are often subtle, and they can be genuinely difficult to spot — especially when you’ve been removed from the day-to-day finances of the household.

What Can a Private Investigator Actually Do?

This is where things get practical. Licensed private investigators in NZ operate within strict legal boundaries — they won’t tap phones, access bank accounts, or dig into private digital records. What they can do is gather observable, documented evidence using entirely lawful methods. Here’s how that typically looks.

Physical Surveillance

If your spouse claims to be unemployed or earning very little, but you’ve seen them heading to what looks like a regular job, a PI can legally observe and document that activity in public spaces.

Surveillance might involve watching someone’s movements over a period of days or weeks — noting where they go, who they meet with, and whether their behaviour matches what they’ve declared in court. This kind of documentation can be very useful when there’s a visible gap between what someone claims and how they actually live.

It’s worth noting that surveillance is conducted in public or from public vantage points only. A PI cannot enter private property or film through windows. Any evidence gathered must be obtained lawfully to hold up.

Records and Asset Research

Experienced investigators know where to look — and more importantly, how to interpret what they find. Through official registers and formal record sources, a PI can build a documented picture of someone’s assets and business interests that goes well beyond what most people would uncover on their own.

This kind of research can cross-reference property holdings, company involvement, court history, and registered assets — painting a much fuller picture of someone’s financial position. It’s methodical, verifiable, and produces evidence that holds up to legal scrutiny.

If your spouse claims to have no property or business interests, this type of investigation can often reveal a very different story.

Background Checks

In some cases, running background checks in NZ can reveal information relevant to a financial dispute — such as a history of fraud, prior undisclosed business interests, or inconsistencies in someone’s employment history. This can help provide broader context when assessing how credible a spouse’s financial declarations actually are.

Documenting Lifestyle Against Declared Income

One of the most effective things a PI can do is simply document what’s visible — and compare it to what’s been declared.

If someone claims a modest income but is regularly dining at expensive restaurants, driving a new vehicle, taking overseas trips, or buying luxury items, that discrepancy can be documented and presented as evidence.

A PI can photograph assets — cars, boats, holiday homes, caravans — that a spouse claims not to own or has conveniently failed to mention. This kind of visible, documented evidence can prompt further legal investigation.

Working Alongside Your Legal Team

A private investigator works best as part of a broader strategy — not in isolation. The evidence they gather is designed to complement the work your lawyer is already doing, and in many cases it can open doors that might otherwise stay closed.

For example, documented evidence of an undisclosed asset or inconsistent lifestyle may give your lawyer stronger grounds to push for formal financial disclosure. It can shift the dynamic of negotiations, or simply give you the confidence to know your instincts were right.

How Can PI Evidence Be Used in a Divorce?

Evidence gathered by a PI can be passed to your lawyer and, depending on its nature, may be submitted in court proceedings. It may also be used to prompt further legal disclosure — for example, if documented evidence suggests undisclosed income, your lawyer may be able to seek formal financial discovery orders.

It’s worth having a conversation with your lawyer before engaging a PI, so that any evidence gathered fits within the broader legal strategy. Every situation is different, and what’s useful in one case may not carry the same weight in another.

A good PI will also be transparent about what they can and can’t deliver, and won’t make promises about outcomes. The goal is to gather factual, documented information — what you do with it legally is a separate matter.

Is Hiring a Private Investigator Worth It?

 If there are clear signs of financial dishonesty and the stakes are significant — shared property, a business, or a substantial income gap — professional investigation may well be worth considering.

If you’re based in New Zealand, a reputable private investigator in Auckland can carry out discreet, professional investigations that give you a clearer picture of what you’re actually dealing with. That information alone can be valuable — even if it’s simply confirmation that your instincts were right.

The cost of investigation should always be weighed against the potential financial outcome. A conversation with a PI about what’s involved and what’s realistic is usually a good starting point.

What to Do Next

If you’re concerned that your spouse may not be disclosing everything during your divorce, here are some sensible first steps:

•       Talk to your lawyer first — they can advise on the most effective approach
•       Write down any observations that seem financially inconsistent
•       Gather any documents you already have legitimate access to
•       Consult a PI to understand what’s possible within legal boundaries

You don’t have to navigate this alone. The team at Trojan Private Investigation and Security works with individuals going through exactly these kinds of situations — professionally, discreetly, and with a clear focus on gathering evidence that’s actually useful.

Every situation is different. But having a clearer, factual picture of your circumstances is often the first step towards making informed decisions about your future.