The plan is comprised of four alert levels that correspond to the respective threat levels.
The VIGILNAT plan sets out management and coordination bodies for each alert level.
Alert level 1 corresponds to the LOW threat level
No specific management body is put in place. The competent stakeholders and departments are responsible for carrying out their respective missions and specific procedures.
Alert level 2 corresponds to the MEDIUM threat level
The competent stakeholders and departments are responsible for carrying out their respective missions and specific procedures. The Anti-terrorism Coordination Group (Groupe de coordination en matière de lutte contre le terrorisme, GCT) coordinates government action.
Alert level 3 corresponds to the SERIOUS threat level
As soon as the government declares alert level 3, the Terrorist Threat Evaluation Cell (Cellule d’évaluation de la menace terroriste, CEMT) is put in place, composed of the State Intelligence Service, the Grand Ducal Police, the High Commissioner for National Protection and the Luxembourg Public Prosecutor. The State Prosecutor chairs this cell.
The CEMT evaluates the situation and increases surveillance before the Crisis Cell is activated. The chair of the CEMT reports regularly to the chair of the GCT.
Alert level 4 corresponds to the VERY SERIOUS threat level
The Prime Minister activates the Crisis Cell (Cellule de Crise, CC) when the alert level is raised to 4. Convoked by the High Commissioner for National Protection and chaired by the Minister of Internal Security, the CC initiates, coordinates and monitors the execution of all the measures to deal with the crisis and its effects with the aim of returning the situation to normal. It prepares the necessary decisions and submits them to the government for approval.
The Crisis Cell is composed of representatives from the ministries, administrations and departments concerned depending on the nature and scale of the crisis. It is chaired by the Minister of Internal Security or a person nominated by him for such a purpose. It sits, when possible, at the National Crisis Centre.
In the event that an operational response on the ground is required, the Crisis Cell's mission extends to coordinating and monitoring the execution of all such response measures.