Established 1986 · Licensed by the Singapore Police ForceInvestigations 24/7 +65 8855 6186Security Solutions & Technology +65 9456 1778
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Matrimonial investigation · SPF-licensed · 24/7

Infidelity Investigation SingaporeWhen trust is broken, you deserve to know the truth.

Discreet matrimonial investigations by licensed private investigators — lawful surveillance in public places, time-stamped photo and video evidence, and a calm, confidential report you can rely on.

Call 24/7 · +65 8855 6186WhatsApp in confidence
Licence L/PS/000759/2025Strictly confidentialTime-stamped evidence
How does an infidelity investigation work in Singapore?

A licensed private investigator carries out discreet surveillance in public and legally accessible places — around the days and times you’ve noticed changes — and records what happens with time-stamped photos and video. You then receive a confidential written report to guide your own decisions, or to share with your family lawyer.

Licensed by
Singapore Police Force
PI licence
L/PS/000759/2025
Evidence
Time-stamped photos, video & written report
Method
Public & legally accessible places only
Privacy
PDPA-compliant · need-to-know
Hotline
+65 8855 6186 · 24/7
First step
Free, confidential consultation

What we do

Matrimonial investigation Singapore — four ways we help

From a quiet pre-marital check to court-ready surveillance evidence. Choose what’s closest to your situation.

When trust is broken, you deserve to know the truth — gently, lawfully and in confidence.

Professional covert surveillance in public and legally accessible areas, documenting movements and activities at the times that matter. Every observation is backed by time-stamped photographs and video, compiled into a confidential report.

Commonly used for

Infidelity suspicionsDivorce proceedingsCustody disputes
Couple silhouetted at sunset — matrimonial and infidelity investigation in Singapore
  • Surveillance planned around the pattern you’ve noticed
  • Time-stamped photos & video footage
  • Confidential written report and debrief
  • Cross-border checks through licensed partners

Quiet, patient observation — only where the law allows.

Our investigators use professional-grade, discreet imaging equipment to produce clear, time-stamped photo and video documentation — exclusively in public, lawful locations such as malls, MRT stations, CBD streets and public car parks.

Surveillance for insurance claims

Commonly used for

Matrimonial disputesCustody verificationCivil litigationInsurance claims
Private investigator conducting lawful surveillance from a vehicle in Singapore
  • Single or multi-investigator teams
  • Vehicle and on-foot observation
  • Time-stamped, continuity-logged footage
  • Island-wide, day or night

“Knowing who you are marrying is not distrust — it’s wisdom.”

Before you commit, we quietly verify identity, marital status history, financial standing, ACRA business records and legal records — from lawful, official sources. Particularly valuable for international relationships and family-arranged introductions.

See all background checks

Commonly used for

International relationshipsFamily-arranged introductionsOnline / long-distance romance
Pre-marital background check in Singapore — verifying a partner before marriage
  • Identity & marital status history
  • Financial standing indicators
  • ACRA directorships & business records
  • Legal & litigation records

Facts, organised for your lawyer — not for drama.

If you are heading towards the Family Justice Courts, we organise our findings into a clear chronology with indexed, time-stamped exhibits, so your family lawyer can decide how best to use them. Where needed, our investigators can support your legal team.

Commonly used for

Divorce under the Women’s CharterCustody & accessMaintenance disputes
Investigator discreetly documenting activity from a public lane — divorce evidence Singapore
  • Chronological, indexed evidence report
  • Continuity notes for photos & video
  • Support for your family lawyer
  • Child-first custody documentation

Quiet signs self-check

Worried about a cheating spouse?

Tap any change you’ve noticed. There’s no score to pass or fail — it simply helps you put a feeling into words.

  • Private: nothing you tap is saved or sent.
  • Signs aren’t proof. Many have innocent explanations.
  • Prefer to talk? +65 8855 6186, 24/7.
10 common signsTap to tick · tap again to clear
0of 10 noticed

Tap any sign you’ve noticed. Nothing is saved or sent.

Signs aren’t proof. Only lawful, documented observation gives a clear answer — whichever way it goes.

Talk it through in confidence

Your evidence pack

Surveillance investigation evidence you can actually use

Everything we observe is recorded, time-stamped and organised — so you, and your lawyer if needed, can see exactly what happened and when.

  1. Exhibit A

    Time-stamped photographs

    Clear stills taken from public places, each with its date and time.

  2. Exhibit B

    Video footage

    Continuous clips that show context — not just a single moment.

  3. Exhibit C

    Movement log

    A minute-by-minute chronology of movements and activities observed.

  4. Exhibit D

    Written report

    A confidential summary of findings, with exhibits indexed for your lawyer.

Illustrative exampleGathered only in public & legally accessible placesHandled under the PDPA

How it works

How a private investigator for a cheating spouse works with you

Unhurried, lawful and paced to you. You decide every step — nothing begins without your go-ahead.

  1. A quiet first conversation

    Free and confidential — at our Lavender office, by phone or on WhatsApp. We listen without judgement and answer honestly.

  2. Assessment & plan

    We check what is lawful and feasible, focus on the days and places that matter, and give you a clear quotation.

  3. Discreet surveillance

    Licensed investigators observe in public and legally accessible places, documenting with time-stamped photos and video.

  4. Report & debrief

    You receive a confidential report and we walk you through it calmly — including when to speak to a family lawyer.

Emotional readiness

Be prepared for either answer

Before you begin, pause. The truth brings relief or pain — often both. Knowing how you might respond helps you act with clarity rather than in the heat of the moment.

Ifyour fears are confirmed

  • You will have facts instead of doubts — take time before you act.
  • Speak to a family lawyer before confronting anyone or moving out.
  • Keep the report private; don’t share it in anger or online.
  • If children are involved, keep their routines steady and their welfare first.
  • Lean on trusted support — a friend, counsellor or faith community.

Ifnothing untoward is found

  • Let the relief in — a clean result is a real answer.
  • The unease may still be telling you something about the relationship.
  • Couples counselling can help rebuild communication and trust.
  • We report honestly what we saw, and never inflate findings.
  • You can close the question and move forward with certainty.
  1. What will I do if my suspicion is confirmed?
  2. What will I do if it isn’t?
  3. Who can support me through either outcome?
  4. Am I and my children safe right now?

Read: Be mentally prepared before using PI services

Within the law

How we catch a cheating spouse — and the lines we never cross

Evidence only helps you if it was gathered lawfully. Unlawful “evidence” can be excluded — and can expose you to liability.

What we do

  • Surveillance in public and legally accessible places — malls, MRT, CBD streets, public car parks
  • Time-stamped photo & video of what happens in public view
  • Pre-marital checks from lawful, official records such as ACRA
  • Need-to-know handling of your case, in line with the PDPA
  • Reports prepared with your lawyer and the Family Justice Courts in mind
  • Honest advice when surveillance isn’t the right tool

What we will never do

  • Hack or read your spouse’s phone, WhatsApp, email or social media
  • Place a GPS tracker on a car you don’t lawfully own or control
  • Enter homes, condo units, hotel rooms or other private property
  • Obtain bank, telco or medical records
  • Film into private spaces such as through windows
  • Set up “honey traps” or entrap anyone

Singapore context

Divorce evidence in Singapore: what to know

General information only — not legal advice.

Two wedding bands — matrimonial and divorce matters in Singapore

  1. Adultery and the Women’s Charter

    In Singapore, a divorce is granted when a marriage has broken down irretrievably. Under the Women’s Charter, adultery is one of the facts that can be used to show this.

  2. The Family Justice Courts

    Divorce, custody and maintenance matters are heard by the Family Justice Courts. Clear, well-documented evidence helps your lawyer present facts rather than impressions.

  3. Lawfully obtained, or not at all

    Evidence should be gathered lawfully. Secretly accessing a spouse’s phone or accounts can breach the Computer Misuse Act — and harm your case.

  4. Children come first

    In custody matters, the welfare of the child is the court’s central concern. Our family and custody investigations focus on care arrangements, not point-scoring.

  5. Your privacy, protected

    Your personal data and case details are handled in line with the PDPA, on a strict need-to-know basis, from first call to final report.

We’re not a law firm. Before you act on findings — or confront anyone — speak to a family lawyer about your options.

Confidential enquiry

Talk to someone who understands

You don’t need proof to call — most people start with a feeling that something has changed. Tell us as much or as little as you like.

Investigation hotline · 24/7+65 8855 6186
  • No judgement, no pressure, no obligation.
  • A clear quotation before any work begins.
  • Your details stay need-to-know, under the PDPA.
WhatsApp instead

Confidential enquiry

Your enquiry goes only toPrivate InvestigationLim Yong Yi, CFE · 24/7 · yy.lim@ranger-security.com.sgNeed a different team? Use our Contact page →

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Insights

Read before you decide

FAQ

Infidelity investigation questions, answered honestly

More FAQs
How much does an infidelity investigation cost in Singapore?

It depends on the scope — how many investigators are needed, over how many days or evenings, at which locations, and what reporting you need. After a free, confidential consultation we give you a clear quotation before any work begins, so there are no surprises.

Is it legal to hire a private investigator to follow my spouse in Singapore?

Yes, when you engage an agency licensed by the Singapore Police Force and the surveillance stays in public or legally accessible places. Ranger holds Private Investigation Agency Licence L/PS/000759/2025. We never trespass, hack devices or access private records.

Can surveillance evidence be used in divorce proceedings at the Family Justice Courts?

Potentially, yes. Under the Women’s Charter, adultery is one of the facts that can show a marriage has broken down irretrievably. Evidence that is lawfully obtained and properly documented is far more useful to your lawyer. We are not a law firm — your family lawyer will advise how, and whether, to use it.

Will my spouse find out that I hired an investigator?

Our investigators are trained to work discreetly, and your case is handled on a strict need-to-know basis in line with the PDPA. We also advise you on protecting your own privacy — for example, not reading updates on a shared phone or laptop.

What if the investigation finds nothing?

Then you have an answer too. A clean, well-documented result can give real peace of mind. We report honestly what we observed — including when nothing untoward is happening — and never exaggerate findings.

Can you track my spouse’s car with GPS or check their phone messages?

No. Placing a tracker on a vehicle you don’t lawfully own or control, or accessing someone’s phone, WhatsApp or accounts without authority, can breach Singapore law, including the Computer Misuse Act. We work only through lawful observation and records.

What does a pre-marital background check in Singapore cover?

It verifies identity, marital status history, financial standing, ACRA business records and legal records from lawful, official sources. It is especially useful for international relationships and family-arranged introductions.

How long does a matrimonial investigation take?

It depends on the pattern you have noticed. We plan observation around the days and times that matter most, so some cases need only a few sessions while others need repeated windows. We give you a realistic plan and timeline at the start.

Island-wide

Matrimonial surveillance across Singapore

From HDB estates and condos to the CBD, Jurong and Changi — and across the Causeway through licensed partners.

CBD & Raffles PlaceOrchardJurong & TuasWoodlandsTampines & Pasir RisPunggol & SengkangAng Mo KioBishan & Toa PayohBukit TimahClementiYishunBedokChangiSentosaKallang & LavenderCross-border: Malaysia & region

Confidential · No obligation

Whatever the answer, you don’t have to face it alone.

Start with a free, confidential conversation. We’ll listen, tell you what’s lawfully possible, and give you a clear quote — no obligation, no judgement.

Call +65 8855 6186WhatsAppSend an enquiry
Private Investigation 24/7: +65 8855 6186808 French Road, #07-183, Kitchener Complex, Singapore 200808