Val d’Oise.  Hostage simulation at Grisy nightclub: 800 people mobilized for exercise

Val d’Oise. Hostage simulation at Grisy nightclub: 800 people mobilized for exercise

The gendarmes invest in a nightclub after killing one of the hostages. (©Prefecture of Val-d’Oise)

A festive evening that turns into a night of horror. During the evening of Tuesday 20 September to Wednesday 21 September, armed individuals entered the building Le Grisy nightclubin Grisy-les-Platres (Val d’Oise). Shots are fired. It’s panic on the dance floor. The attackers take the crowds hostage.

This is the scenario of the security exercise prepared by the prefecture of Val-d’Oise, “the largest ever organized in the department, with the aim of testing the operational response and coordination of public services at ministerial level in the face of an exceptional event, in conditions as close as possible to reality”.

More than 5 hours of practice

Police, gendarmes, firefighters, Samu teams, Red Cross, civil security… 800 people were mobilized for this exercise for more than 5 hours. The operation required the closure of several axes and roads in the area, as well as the nightclub.

Gendarmes, who intervened first on the scene, the discotheque was in the gendarme zone, quickly gained the support of several police officers. The National Gendarmerie Intervention Group was also mobilized as well as the demining service of Marly-le-Roi (Yvelines).

Firefighters are now on the front line

Plays of light, loud music, this is always in real conditions when the police intervened at the discotheque. Several victims were discovered, their role played by 350 students at the nursing training institute and volunteers from the association. “They wore a card around their neck to know their condition and therefore could simulate completely different medical situations,” the prefecture points out. In order to provide first aid and free them as quickly as possible, two firefighters from Val-d’Oise entered the premises with the emergency forces.

The exercise made it possible to put into practice the rescue group of firefighters.  If the latter intervened only after the area was secured by the police, they now intervene directly.
The exercise made it possible to put into practice the rescue group of firefighters. If the latter intervened only after the area was secured by the police, they now go straight into action. (©Prefecture of Val-d’Oise)

If until now the rescue services intervened only after the area was secured by the police, now they go straight into action. The move was made possible thanks to a new inter-agency protocol signed between the prefecture, gendarmerie, police and Sdis 95 on 1 June.

We have a dual goal: to save as many lives as possible by optimizing the deployment of our employees, but also to develop in the safest possible environment.

Fire and rescue service of the department of Val-d’Oise.

“The nature of the threat has evolved in recent years, so law enforcement and security practices have also changed. Historically, we were more used to neutralizing the attacker and then organizing the rescue. Today it is about carrying out the extraction of victims in an environment that can still represent a threat, “says the Prefect of Val-d’Oise Philippe Court.

Videos: currently on Actu

The White Plan and the Crisis Unit

Firefighters avoid the confrontation zone and take care of the shelter of the victims to get them, and also “sort” between the people to be saved and those who are already doomed.

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The wounded are cared for by 300 to 400 members of the rescue service, firefighters from Sdis 95, Samu, the regional health agency (Ars), the medical-psychological emergency unit (Cump), approved civil security associations such as Croix-Red. (©Prefecture of Val-d’Oise)

Outside, they are cared for by 300 to 400 members of the rescue service, firefighters from Sdis 95, Samu, the regional health agency (Ars), the medical-psychological emergency unit (Cump), approved civil security associations such as the Red Cross. injured, who are then evacuated to hospitals in the region. Twenty fictitious victims were thus taken care of by the hospital center in Pontoise, which launched its white plan and activated the crisis unit.

Five years ago, a similar exercise took place at the Aren’Ice in Cergy, the largest hall in the Val-d’Oise.

Last November, an accident involving two vehicles and a bus with fifteen passengers on board was simulated under the A115 tunnel, during which 300 first responders were mobilized. “The idea is that the intervention techniques become reflexes to be ready in the event of an attack,” explains the prefecture.

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