The French artists’ union is demanding an investigation into the shooting of French artist Leila Fassouche by police.
She was shot dead on Saturday morning, after she had called a police station to complain about being targeted by officers.
Fassoulche was shot in the head after officers arrived at her apartment building on Boulevard Saint-Denis.
Police said they received a call at 10:40am from the man who had been shot by officers at a building across the street from the Fassourts apartment block.
They found the man, who had a knife in his hand, with his hands up.
He was then taken to a hospital.
The man, whose name was not released, was arrested shortly after his arrest.
A spokesman for the union representing French artists told the AFP news agency that Fassounes shooting was “a clear example of the failure of police to protect artists”.
“The police are a police state, and in this situation, they have to protect themselves,” said the spokesman, Christian Delmonte.
Police have also been accused of being slow to intervene when protesters have attacked police officers.
Last year, police shot and killed a protester during a demonstration in Paris after he attacked a police car.