She had been identified as a potential target.
And as such benefited from the device "women in very great danger".
A 44-year-old mother was killed this Friday evening at her home in Épinay-sur-Seine (Seine-Saint-Denis), we have just learned from police sources.
Her alleged murderer, who is said to be her former companion, allegedly stabbed her to death.
He went to the police station shortly after, according to a police source.
The facts took place around 8 pm, allée Carpeaux, in a popular district of the city.
The man, 51 years old and "identified as a potential danger", according to the same source, would have benefited from an exit permit to go to the victim.
He was in pre-trial detention in Fleury-Mérogis prison (Essonne).
The former boyfriend reportedly went to his ex's house and initially shot him with an electric pulse pistol.
He then allegedly grabbed a knife to strike his victim.
The latter's two children were still in the apartment when help arrived.
First French department to have implemented this system
As a beneficiary of the "women in very great danger" device, the victim had, among the terms of this program, to be in possession of a telephone issued by decision of the public prosecutor.
This mobile has an emergency call button already programmed.
It allows you to be put in direct contact with the police via a special line.
It was not known this Friday evening if the victim had had time to use this phone.
The Bobigny public prosecutor's office was not yet reachable around 10 p.m.
Seine-Saint-Denis is the first French department to have experimented with this device in 2009.
The latter is now extended to the whole country.