An airport is, first and foremost, an area of land where aircraft can take off and land, and is the location of technical and administrative premises for the numerous operators on the site.
This land belongs to the State, which delegates its management to the Lille Métropole Chamber of Commerce, in the form of a concession (see the Our Functions section).

Nevertheless, there are certain domains which come under its prerogative; so the State has several distinct services on the platform:

The Civil Aviation services are responsible for everything connected with air navigation at the airport site, as well as overall control of the airport concession: landing control and the phasing of landings and take-offs, especially the movement of aircraft on the runways and taxiways.

The Border Police service controls the entry of persons onto French territory (immigration control).
They are also responsible for maintaining public order within the terminal and carry out administrative policing and legal operations.

The Air Transport Police control access to the ‘restricted area’ (or ‘airside’); that is to say access to the aircraft parking areas and runways. Their first task is to prevent any intrusion into the Restricted Area and prevent any unidentified or undesirable passenger from boarding the aircraft.

The role of Customs is to control the entry of merchandise onto French territory; this applies not only to Lille Airport’s freight activity but also to Passenger activity.
Their tasks cover the fight against fraud and counterfeiting, the fight against drug, alcohol and tobacco trafficking, managing health and food alerts, controlling the rules and regulations on the safety of goods and merchandise, collecting custom duties and taxes, import and export clearance for merchandise.

The Meteorological service provides vital information for air navigation and for the facilities operator, especially in the case of weather (snow) warnings to alert the snow removal teams.