Private Investigations

Matrimonial and Infidelity Investigations

Do you think your partner is cheating on you? How can you tell if your partner is unfaithful? At National Private Investigators, we’ve investigated hundreds of cases of infidelity and matrimonial issues.
Whether you’re looking for a pre-nuptial investigation, a full private investigation to see whether your partner is being unfaithful, or you just want to do a background check on the person you’re dating, National Private Investigators can help.

Child Custody

Child custody battles can be very difficult during messy divorces with accusations being thrown about on either side. Our private investigators are trained to obtain evidence to help swing the case in your favour. 

Typical evidence discovered include:

  • Housing situation: poor living conditions which are unsafe for your child
  • Criminal record: is there anything in the parent’s history that can be used against them?
  • Finances: do they have enough of a stable income to support your child long-term?
  • Drug/alcohol use: will their consumption put your child at risk?

Proving co-habitation

Sometimes you may need to prove co-habitation due to custody arrangements or maintenance agreements. If you have an agreement that states you will no longer have to pay child maintenance when your ex-spouse lives with a new partner, you will need to prove this in court.

Co-habitation can be very difficult to prove as you need to show that this person is there long-term and contributing financially. National Private Investigators has experience gaining this evidence, saving you thousands of pounds for years.

Don't Let Your Suspicions Go Unanswered Any Longer.


Luke Annan
Luke Annan
I couldn’t be happier with the service with NPI. Very professional and everything was explained really clearly. Great work! Would highly recommend!
josh large
josh large
Fantastic !!! The work done by NPI was quick and the response and results and were hassle free. I got the results I needed and I was grateful of the judgment free professionalism they provided. Would recommend to anyone.
Ash Chap
Ash Chap
Very insightful, professional and knowledgeable - thank you so much.
Breaking Mad UK
Breaking Mad UK
Very Helpful! Awesome Stuff thanks!
Renna Ren
Renna Ren
Very professional. Great service! Thank you for the efficient and speedy service.
dylan hibbert
dylan hibbert
Essential Company when seeking due diligence on a recent merger.
Dorian Szymanski
Dorian Szymanski
Thanks so much for the help, great service
Becky Hilditch
Becky Hilditch
The person I spoke with was very helpful, friendly and professional. Highly reccomend using this very approachable judgement free company.
Kimberley Hatfield
Kimberley Hatfield
Brilliant service, thank you for all your help and assistance. Would definitely recommend!
Philip Kendall
Philip Kendall
National Private Investigators service was brilliant. Resolved my issue very quickly.
I'm very happy with the work provided from National Private Investigators. I would highly recommend their service. Thank you!
David G
London UK
Excellent service throughout, we were kept up to date on the investigation every step of the way. We couldn't have asked for more.
Lucy E
Cambridge UK
Amazing result! As a business, we've worked with a few companies over in the years, and NPI get the job done. Highly recommended!
Johnathan M
Greater London UK
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