In Depth Investigations is a Private Investigations Detective Agency established in 1990 in Perth, Western Australia, specialising in personal, family and business investigations both nationally and internationally. Our highly qualified private investigators are committed to delivering ethics and integrity across all private and corporate investigations, and pride ourselves on an unrivalled degree of professionalism and discreetness.

Our team of ex-police, military, legal and financially trained investigators are licensed by the Western Australian Police Service, and bring a wealth of knowledge to all aspects of your private investigation and surveillance. We operate and adhere to all relevant legislation, training and regulatory provisions including the Australian Commonwealth Privacy Act.

In Depth Investigations acts as a private detective agency on behalf of major insurance companies, government entities, corporate organisations, solicitors and private clients; conducting investigations in to fraud, surveillance, asset tracing, background checks, personal injury claims, due diligence, crash investigations, missing persons, infidelity and many other avenues of inquiry.

Our Perth based investigators bring local knowledge and experience to all Western Australian investigations, and guarantee a trustworthy and discreet service to all our clients. Whether you’re an individual requiring personal or family related investigations, a solicitor requiring information for a client, or a business looking to benefit from honest, ethical and trustworthy private investigation and surveillance services – make sure you speak with our team of experts at In Depth Investigations.


  • All services available 24 hours 7 days a week
  • Licensed by the WA police service
  • Highly trained professional private investigators with police criminal investigation qualifications
  • Public liability and indemnity insurance
  • State of the art private investigation systems
  • Local Perth knowledge with national and international coverage
  • Affordable tailored fees with fixed price packages available
  • Access to financial, legal and occupational health services
  • Personal discreet service with access to the people who own the organisation
  • Excellent success rate and highly recommended by government, corporate, business and personal clients