Full Services Agency
LOI Investigations is a London-based specialist in handling the most complex cases across the city and the UK. With a 98.9% success rate (March 2024), our team of male and female investigators are strategically positioned throughout all UK counties, offering extensive expertise in multi-jurisdictional matters through our global network of offices. This ensures that we can keep client costs manageable while delivering exceptional results.
We serve a diverse clientele, including private individuals, businesses, corporates, VIPs, and celebrities, providing services such as tracing missing persons and assets in London and worldwide, fraud investigations, divorce and family issue resolutions, covert surveillance, problem-solving, and cyber solutions. We also excel in tackling difficult and unusual cases.
Our offices are staffed locally in 44 countries, with bilingual, qualified, and insured investigators, all holding relevant local licenses where required, offering a truly global reach.
Competitive & Realistic Rates
No Hidden or Extra Costs
PRO-BONO CASES CONSIDERED
All Types of investigations Worldwide
LOI guarantees absolute discretion and client confidentiality.
LOI Investigations, leaders in complex and major investigations. We are experts in obtaining accurate hard to obtain hidden information legally and globally in total confidence.
UK : 0800 1 939 333
Worldwide : +44 800 1 935 777
FREE PHONE / TOLL FREE
WORLDWIDE
Qualified Professional Bilingual.
Private investigators available
24 hours per day, 7 days a week.
COMPETENT-RELIABLE-EXPERIENCED
FREE CONSULTATION
Investigation Services
Unfaithful Partner Investigations
LOI Investigations offers specialised Infidelity Investigations Services, designed to provide you with concrete evidence and peace of mind. Our highly trained private investigators in London employ discreet surveillance techniques. Reach out to us for a confidential and comprehensive consultation.
Missing Persons Tracing
Searching for a missing person in London or worldwide? LOI Investigations offers private investigator services & private investigators in London to locate lost friends, family members, or debtors. Utilising the latest investigative techniques, our experienced team provides effective and discreet missing persons investigations.
Surveillance
At Line of Inquiry, we offer in-house surveillance private investigators led by experienced professionals, including a former military intelligence officer and a Senior Surveillance officer with 23 years of experience. Our surveillance services, available across London and worldwide, include mobile and static solutions, under-cover work, and the use of advanced technology. Whether discreet or covert, our fool-proof method ensures professional evidence-gathering to meet your needs.
Asset tracing and recovery
Our asset tracing services are designed to help our clients identify hidden assets, such as bank accounts, real estate and other investments, that have been intentionally hidden to avoid detection. We use a variety of tools and technologies, including open source intelligence (OSINT), public records searches, and deep web analysis to trace and identify hidden assets. Our team of experienced private investigator London works closely with our clients to understand their unique needs and develop a customized asset tracing strategy that meets their specific requirements.
Background Checks
LOI Investigations specializes in accurate and thorough background checks for individuals and companies. Offering pre-employment background checks, including verification of education, employment history, and criminal record checks, our experienced London private investigator ensure the safety and security of your business and personal life. Trust LOI Investigations for reliable background checks with confidentiality and fast turnaround times.
Relationship Matters, Family Issues and Divorce
Dealing with family issues and divorce? Line of Inquiry offers specialised private investigator services to assist in personal and financial matters, including hidden assets, pre-divorce background checks, and post-separation surveillance. Whether you suspect infidelity, need to assess financial status, or are concerned about child’s well-being, our experienced London Private investigators handle these delicate situations with discretion and sensitivity. Contact Line of Inquiry to navigate family disputes and divorce with confidence and peace of mind.
Jewellery Theft
At LOI Research, we specialize in the recovery of stolen jewellery, art, and high-value items. Our dedicated team of private investigators in London is renowned for their expertise in tracking and recovering valuable items that have been lost or stolen. Our services are not just limited to London; we operate globally, providing our clients with the best chance of recovering their valuables.
Relationship Matters & Family Issues
Comprehensive support in family law matters, including relationship disputes and divorce cases. Our services extend to missing persons tracing, surveillance, and personal protection against blackmail. Utilizing advanced technology and an experienced team, we offer discreet and effective solutions tailored to the unique challenges faced by families.
Private Clients
We at Line of Inquiry offer a range of services for private clients, including missing persons tracing, background checks, surveillance, and asset tracing. Specialized services are also available for relationship matters, identity theft, and blackmail. Our experienced team utilizes advanced investigative techniques to provide effective and discreet solutions tailored to individual needs.
Criminal Defence
Line of Inquiry has a proven record of success providing legal support for extremely high-profile defendants as well as members of the general public. At LOI we scrutinise all police evidence, reconstruct crime scenes and re-analyse the line of questioning our clients may have been subjected to at the police station and/or by the Prosecution in court.
We work with highly experienced former Police Detectives, independent forensic laboratories and crime scene experts.
Private Prosecutions
For Private Prosecutions, we have an in-house solicitor at your disposal as well as certified court enforcement officers. Our Private Prosecution service can offer the legal knowledge and litigation support you need. If you have exhausted all of your resources, don’t despair, because our team of investigative professionals has the expertise you need to bring your case to court.
Sexing and Catfishing
Considering a Sexing & Catfish Investigation? Line of Inquiry provides in-depth, comprehensive reports to help you in your Catfish Investigation. Catfishing consists of taking a false identity online to win somebody’s affection. They hide behind a fake profile picture and create a backstory to their lives to trick the victim into trusting them. Contact LOI for expert private investigator for Catfish Investigations.
Blackmail
Line of Inquiry understand that each blackmail case is unique. Our approach is highly customized, taking into account the individual circumstances and specific demands of each situation. Whether it’s a case of corporate espionage, personal vendetta, or cyber harassment, our Private investigators for Blackmail investigations are equipped with the skills and tools necessary to address the challenge effectively. Leveraging Technology in Blackmail Investigations
Suspicious Death
At Line of Inquiry, we have the necessary experience to investigate unsolved murders, suspicious death and questionable suicide. There are also a worrying number of innocent men and women serving life or lengthy prison sentences for crimes that they did not commit. We have access to many sources who can help us to obtain court papers for re-examination and we have access to independent forensic laboratories, forensic experts, private investigators and retired police detectives.
Acquisition and Mergers
Considering an acquisition or merger? Line of Inquiry provides in-depth, comprehensive reports to answer key questions before you commit to a transaction. Our experienced team goes beyond paper, assessing potential risks, financials, cybersecurity, and IP issues, ensuring you know exactly what you’re entering into. Contact LOI for expert support in the acquisition and merger arena, backed by case studies and testimonials.
MORE SERVICES
Construction Fraud
Construction industry fraud is increasing at an alarming pace. LOI Investigations in the last 9 years, have been involved in the private investigation of construction frauds, in excess of 190 million USD to as small as five million GBP. To date, in total we have worked on over 20 projects. At LOI Investigations, we can and will reduce clients exposure to these risks.
Businesses
Line of Inquiry offers a comprehensive suite of services tailored for businesses. These include business intelligence, asset tracing, debtor tracing, and competitive intelligence. Specialized services extend to acquisition and mergers, investment intelligence, and supply chain risk mitigation. Our experienced team employs advanced technological tools and investigative techniques to ensure your business stays ahead in a competitive market.
Intellectual Property
LOI Investigations conduct IP Property Investigations always underneath the direction of Legal Counsel. LOI is an established, recognised, intellectual Property Investigation Consultancy. Since 1996, we have provided valuable insights, with completely reliable and actionable resources which support intellectual Property Investigations
Cyber Investigations
We offer a comprehensive range of Cyber Investigation services, including tackling catfishing, social media harassment, and cyber threats. Our expertise extends to cryptocurrency investigations and technical counter-surveillance. Utilizing a team of former FBI agents, we provide robust solutions to protect both individuals and businesses from various cyber risks.
Lawyers
We at Line of Inquiry specialize in litigation investigation and support services, offering worldwide assistance for both civil and criminal cases. Our services include fraud investigations, asset tracing, and family law support. Utilizing advanced technology and techniques, we work closely with legal teams to provide expert analysis and testimony, adhering to the highest ethical standards.
Emerging Markets
Office In London
24/7 availability, in office, over the phone as well as online.
We can visit clients or if preferred schedule Zoom/Google Teams meetings.
Meetings in office by prior appointment.
Featured in Media
Building the Future
Achievements:
- All employees have passed Home Office full criminal background checks
- Full members of the Institute of Professional Investigators
- Fully insured and certified
- Registered with the Information Commissioner’s Office (ICO)
Who We Are:
Line of Inquiry (LOI) boasts a highly skilled network of cyber investigators, trained to government standards, along with specialist surveillance experts and many other professionals. We maintain strong, strategic contacts globally.
Our head office is located at 5 Chancery Lane, London WC2A 1LG, right in the heart of the Legal District. We also have offices across the UK, Ireland, Monaco, Luxembourg, Switzerland, and many more international locations, spanning Europe, North America, Asia, the Middle East, and Australia.
Our mission is to provide you with the information you need—discreetly, undetectably, and with the utmost confidentiality.
More About Us
We are a team of highly experienced private investigators, combining traditional investigative methods with cutting-edge techniques. LOI has built a strong reputation as one of the world’s leading private investigation consultancies and expert problem-solvers.
Our founder was also commissioned to write a report on press intrusion, privacy, and protection, which was translated into every FIFA (Fédération Internationale de Football Association) member’s language.
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Achieved Credentials
Line of Inquiry works with contracted representatives who are licensed, where required, in their respective countries. Our team consists of experienced, qualified male and female private investigators, with the exception of Russia. While we have contacts in the region, we do not have a permanent Line of Inquiry representative based there. However, a contracted representative can meet with you at any location of your choosing to discuss your case with complete confidentiality.
We take legal action against fake reviews and any third parties who copy or clone our content or misrepresent themselves as Gavin Burrows or Line of Inquiry (LOI). We specialise in legally tracing emails, YouTube, Facebook, LinkedIn, and Instagram posts and comments, as well as tracking email and chatbox inquiries—even when VPNs are used. We assist in the prosecution of fake reviews and offer this service to private individuals, sole traders, SMEs, and corporates alike. We collaborate closely with a leading London lawyer and KC who specialize in this field, alongside our own in-house Line of Inquiry Cyber Team.
Please call :
UK : 0800 1 939 333
Outside UK : +44 800 1 935 777
