Matrimonial · 6 min read

Considering a Matrimonial Investigation? Here's What to Know First

Published 2026-05-12 · Blacklisted Investigations

Hiring a private investigator for a matrimonial matter is one of the hardest decisions a person makes. It is rarely an impulse — it is usually the last step after months of uncertainty, conflicting evidence, and unanswered questions. The point of this article is to set out, plainly, what is and isn't realistic, so you can make an informed choice without being sold to.

What an investigation can give you

Certainty. That is the deliverable. Whatever the outcome — confirmed concerns, partial confirmation, or no evidence at all — you will know, on the basis of independently gathered facts, what is actually happening. That clarity is what allows the next decision (whether it's to repair, separate, or simply move forward) to be made on a sound footing.

What an investigation cannot give you

It cannot give you a reason for what's happening, an apology, or a path back to where you were. Those are conversations you have with people, not investigators. We are not a substitute for a counsellor, a lawyer, or a difficult honest conversation; we are a way of removing the not-knowing from the equation so the other work can begin.

How matrimonial matters work in NZ law

New Zealand is a no-fault jurisdiction for the dissolution of marriage. That means evidence of infidelity does not affect the formal grounds for separation or divorce. However, factual evidence may be relevant in related proceedings — relationship-property division (in narrow circumstances), parenting orders, or where assets have been dissipated. A good investigator works closely with your family lawyer to scope only what the law makes useful.

Discretion

We do not contact the other party. We do not disclose your identity in the course of the investigation. Files are encrypted and access is limited to the lead investigator. The existence of an engagement is never discussed with anyone outside the matter — not socially, not professionally, not ever. This is the single most important commitment we make and it is not negotiable.

What we will tell you up front

If we don't think we can help — because what you're describing isn't likely to produce useful evidence, or because the situation calls for a different professional — we will say so before you commit. That conversation is free and confidential.

Considering an engagement?

First consultation is free, confidential, obligation-free.

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