{"id":11314,"date":"2026-06-16T15:30:21","date_gmt":"2026-06-16T15:30:21","guid":{"rendered":"https:\/\/groupehyperion.com\/lexique\/private-investigation-definition-missions-and-legal-framework\/"},"modified":"2026-07-30T07:40:54","modified_gmt":"2026-07-30T07:40:54","slug":"private-investigation-definition-missions-and-legal-framework","status":"publish","type":"glossary","link":"https:\/\/groupehyperion.com\/en\/lexique\/private-investigation-definition-missions-and-legal-framework\/","title":{"rendered":"Private Investigation: Definition, Missions, and Legal Framework"},"content":{"rendered":"

Behind infidelity cases, commercial disputes<\/a>, corporate fraud, or the detection of listening devices, lies a regulated, structured, and often misunderstood profession: private investigation. This discipline structures all investigative activities carried out by private detectives in France. Here’s what it covers exactly, and how it is legally organized. <\/p>\n

What is Private Investigation?<\/strong><\/p>\n

Private investigation refers to all activities of research, collection, and analysis of information conducted by accredited professionals on behalf of private clients — individuals or businesses. It is carried out outside state structures (police, gendarmerie, internal intelligence) and relies exclusively on legal means. <\/p>\n

In France, these activities are governed by the law of September 28, 2010, reforming private security activities, and practitioners must hold a professional card issued by the CNAPS (National Council for Private Security Activities).<\/p>\n

What are the missions of private investigation?<\/strong><\/p>\n

The scope of private investigation is broader than generally imagined. It covers six main categories of missions: <\/p>\n

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  1. Surveillance<\/a> and Shadowing<\/strong> — discreet observation of a person in public spaces to establish facts (marital infidelity, behavior of an employee on sick leave, activities of a suspicious competitor).<\/li>\n
  2. Personality and Solvency Investigations<\/strong> — verification of the profile, background, financial situation, or statements of an individual or a company.<\/li>\n
  3. Person Locating<\/strong> — finding an untraceable debtor, locating a missing relative, or identifying the address of a third party within a legal framework.<\/li>\n
  4. Commercial and Industrial Investigations<\/strong> — detection of unfair competition<\/a>, counterfeiting, leaks of confidential information, or acts of corruption within an organization.<\/li>\n
  5. Counter-intelligence and Technical Detection<\/strong> — identification of illicit surveillance<\/a> devices (spy microphones, hidden cameras, GPS trackers) in professional premises or vehicles. This is what is referred to as TSCM operations. <\/li>\n
  6. Evidence Gathering<\/strong> — building a documentary file usable in civil, labor, or commercial legal proceedings.<\/li>\n<\/ol>\n

    What is the difference between private investigation and state intelligence?<\/strong><\/p>\n

    State intelligence is provided by public services (DGSI, DGSE, judicial police services) with prerogatives that go beyond common law: administrative wiretaps, access to sovereign files, ability to act undercover. It operates in the national interest. <\/p>\n

    Private investigation, on the other hand, operates in the interest of a particular client or legal entity. It has no public authority prerogatives. Its practitioners cannot arrest, illegally eavesdrop, or enter private places without authorization. Their strength lies in their mastery of legal observation techniques, their network, and their ability to produce admissible evidence<\/a> in court. <\/p>\n

    Private Investigation and Private Life: Where is the Limit?<\/strong><\/p>\n

    This is the central question of the sector. A private detective is authorized to observe, photograph, and record a person’s behavior in public spaces. However, they cannot: <\/p>\n