Most people are open and honest about their living situations. Sometimes, though, the truth gets bent for personal or financial gain. Typical problem areas include unlawful subletting, tenancy fraud, or someone misrepresenting where they live to affect maintenance, benefits, or council support.

False claims can harm private landlords, small businesses, and local authorities. If you need proof of cohabitation in the UK, the key is lawful, clear evidence collected over time so a court or decision maker can rely on it.
People seek cohabitation evidence for different reasons. Common scenarios include:
Misrepresentation of cohabitation is common in fraud cases. Government figures suggest benefit fraud costs taxpayers around £2 billion a year, and unlawful subletting of social housing is also treated as a criminal offence.
Citizens Advice defines cohabitation as two people living together as a couple in a relationship equivalent to marriage. Cohabiting families in the UK have grown from 1.5 million in the mid-1990s to more than 3.3 million today, making it the fastest growing family type.
Not all cohabitation is fraudulent, but people may hide or misstate living arrangements to gain financially. Landlords also face cohabitation issues where tenants sublet without consent.
If you intend to rely on cohabitation evidence in court, you need credible proof. This usually means a detailed cohabitation report supported by photographic and video surveillance, ideally collected over two to three weeks. Courts prefer continuous monitoring rather than isolated snapshots.
Useful evidence can include:
Courts expect clarity. Smartphone images can be acceptable but high-resolution cameras and telephoto lenses provide stronger, more reliable evidence.
Alongside surveillance, checks such as electoral roll searches, Land Registry entries, Companies House records, or OSINT research may support your claim. These help establish whether someone is genuinely living where they say they are.
Hiring a private investigator for cohabitation surveillance gives you:
Private investigators can save you time, provide impartial evidence, and raise the chance your case is taken seriously.
Proof can include surveillance logs, photographs, video, and supporting records like utility bills or mail. The evidence should show consistent, ongoing residence.
Usually two to three weeks, to show an ongoing living arrangement rather than isolated visits.
Yes, if it is clear, continuous, and collected lawfully. Courts often rely on professional cohabitation reports from investigators.
Yes. In both social housing and private tenancies, unlawful subletting can amount to tenancy fraud and can be prosecuted.
In today’s economy, it’s increasingly common for employees to take on second jobs - weekend shifts, freelance gigs, or online side hustles. While moonlighting can help workers manage the cost of living, it can also create real risks for employers.

If a second job affects performance, creates a conflict of interest, or breaches your company policies, you need to address it carefully. This guide explains what moonlighting is, how to spot the warning signs, and practical steps you can take - including when to bring in a private investigator.
Moonlighting means holding a second job outside someone’s main employment. It is not automatically unlawful, but it becomes a problem when any of the following apply:
Some employees manage extra work without issues. Problems arise when it is hidden, unmanaged, or begins to impact your business.
Moonlighting can be subtle. Typical red flags include:
These patterns do not prove moonlighting on their own - personal issues or burnout may also be in play. Treat them as prompts to look closer.
Left alone, these issues can harm customer experience, increase turnover, and damage your reputation.
A clear, written policy helps you manage secondary employment fairly. Useful points to include:
Share the policy, obtain acknowledgement, and apply it consistently to avoid claims of unfair treatment.
If you suspect moonlighting, follow a fair and proportionate process:
If you need external fact-finding, consider discreet help rather than confronting without evidence.
Confronting an employee without evidence is risky. A discreet investigation can confirm facts while protecting the working relationship. At Private Investigators UK we support HR and legal teams with:
Our goal is to provide clear, tribunal-ready evidence so you can act confidently. If nothing is found, the matter stays confidential.
Not by itself. Issues arise if it breaches contract terms, company policy, working time limits, or confidentiality duties, or if it creates a conflict of interest.
You can set rules and require disclosure and approval. A blanket ban may be hard to justify. Clear criteria and a fair approval process are safer.
Potentially, if there is serious misconduct such as dishonesty, conflict of interest, or misuse of company time or data. Follow a fair process and take advice before disciplinary action.
Public posts can be reviewed. For workplace devices or personal data, follow your policies and data protection rules and be proportionate.
When you need discreet, lawful fact finding to verify patterns, confirm conflicts, or gather evidence without escalating tensions.
Moonlighting is not always a problem, but if it affects performance, creates a conflict, or breaches trust, it is worth addressing. Do not let suspicion linger or jump to conclusions without facts.
To speak in confidence and get a free, no obligation quote, visit our contact page. We will help you assess the situation and plan next steps with discretion and professionalism.
Hidden cameras and microphones are easier than ever to conceal. If you feel someone could be monitoring you at home, you might be right. Consumer tech is cheap and powerful, and professional kits are hard to spot. Below are the key signs to look for, safe checks you can do, and when to bring in a professional bug sweep.

Clicking, buzzing, or bursty static near walls or sockets can indicate a transmitter. Analogue baby monitors sometimes pick up overlapping audio from cheap wireless bugs or IP cameras on 2.4 GHz.
Dogs or cats fixating on one corner, or avoiding a room entirely, can hint at ultrasonic noise or RF emissions the human ear misses. Treat this as a signal to search, not proof on its own.
If private conversations or plans leak repeatedly, assume your environment might be compromised. Capture dates and details in a log so patterns emerge during a sweep.
Open drawers, moved documents, or small items out of position can indicate a covert entry to plant or service a device. Photograph what you find before moving it.
Most covert mics are small black modules with a pin-hole mic and battery, often paired with a cheap Wi-Fi or GSM board to transmit audio. You rarely see the mic itself — it is inside something else:
Well-placed devices are not visible without disassembly. Professional implants may be hard-wired to power and tucked within voids, so consumer bug detectors won’t always find them.
DIY checks you can try safely:
Limits of DIY: cheap RF detectors struggle with modern frequency-hopping or dormant devices. Hard-wired mics without active transmission will not show on a basic sweep. That is where a professional TSCM sweep is recommended.
Think you’re being watched? Take control today
Professional Bug Sweep (TSCM) - UK-wide, discreet, effective
For complex cases or safety concerns, consider reporting to police. Otherwise, engage a professional team to preserve evidence correctly.
Look for a pattern: disturbed fittings, odd Wi-Fi devices, interference, and private details leaking. Do simple checks, then book a professional sweep for confirmation.
They can find basic transmitters but often miss dormant, wired, or frequency-hopping devices. Treat them as a first pass, not a clean bill of health.
Costs vary by size and complexity. Flats can be a few hundred pounds, large homes or multi-site sweeps more. Ask for a free quote with property size and location.
No. Landlords cannot monitor tenants inside a rented property. If you have evidence, seek legal advice or speak to police.
Trackers and mics can be hidden in vehicles. Ask for a combined home and vehicle sweep if you suspect stalking or corporate espionage.
As leading private investigators in the UK, we are often asked if we can access someone’s private communications to confirm suspicions of infidelity. People want the truth, but hacking is not the answer and will put you at legal risk.
No. Private investigators cannot legally hack phones, social media accounts, emails, or messenger apps. Accessing someone’s device or account without consent breaches criminal and civil law in the UK. It also risks contaminating your case if you later need to rely on evidence.
Please do not contact us requesting hacking services. We do not offer or support anything illegal.

We regularly hear from people who were scammed after paying so-called ethical hackers who promised access to WhatsApp, Instagram, or call logs. In every case, the operator was fraudulent or operating illegally. Typical signs include pressure to pay by crypto or gift cards, repeated upsells, and refusal to provide a registered UK business address.
Tracing a phone number is a separate, legitimate service. In some cases we can attribute a number to a name, address, or likely user using lawful open sources and investigative techniques. This is useful to identify unknown callers or to support a wider investigation.
Important: we do not access phone records or intercept communications. All work is based on lawful sources and consent where required.
There are effective, lawful routes that protect your position if you later need to take action.
Our surveillance services are discreet and lawful, and produce evidence that is far more defensible than anything obtained by hacking.
The News of the World case showed how serious unlawful interception is. A private investigator and senior editor were convicted for voicemail interception, with custodial sentences imposed. The message is clear. No reputable UK PI should offer or attempt hacking.
If you suspect your phone or accounts are compromised, take immediate steps:
Those willing to install software may also plant physical bugs such as hidden microphones or cameras. Consider a professional sweep if you have repeated warning signs.
Our bug sweep service uses specialist equipment to detect hidden microphones, cameras, and trackers in homes, offices, and vehicles. All inquiries are confidential. Contact an experienced detective for a free quote.
Anyone offering to hack a phone or social media is putting you at risk. If you have already paid a scammer, gather receipts and messages and report the fraud to your bank and Action Fraud. We can still help you plan a lawful investigation.
We plan lawful, discreet investigations that get usable results. Request a free, no obligation quote with dates, locations, and objectives.
Using someone else’s device or account without clear consent can still be unlawful and will usually harm your position. Speak to us for safer options.
No. Networks will not release call or message content to private parties. We do not request or obtain private telecoms data.
Unlawfully obtained material can be excluded and may expose you to criminal or civil claims. Use lawful evidence that can stand up to scrutiny.
Stop self-investigating on their devices. Keep a private log of times, places, and patterns. Ask us to design a lawful plan that fits your budget.
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