CPV code 79700000 designates Investigation and security services in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
79700000 sits under 79000000 (Business services: law, marketing, consulting, recruitment, printing and security) and groups 2 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.