"When I see murders, I do not stand by ... I have to call a murder a murder and I have to call the murderers the murderers," the director told the crowd of police brutality protestors

The head of the New York City police union is calling for a boycott of all Quentin Tarantino films after the director participated in a rally against police brutality on Saturday in Washington Square Park, the New York Post reports.

Tarantino, whose directing resume includes violent films like Pulp Fiction, Reservoir Dogs and Kill Bill, flew in from California to take part in the event that included hundreds of other demonstrators.

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“When I see murders, I do not stand by … I have to call a murder a murder and I have to call the murderers the murderers,” the Pulp Fiction director, 52, told the crowd of protestors.

He added, “I’m a human being with a conscience. And if you believe there’s murder going on, then you need to rise up and stand up against it. I’m here to say I’m on the side of the murdered.”

Patrick Lynch, president of the Patrolmen’s Benevolent Association, urged the boycott against Tarantino films, calling the director a “purveyor of degeneracy” who “has no business coming to our city to peddle his slanderous ‘Cop Fiction’ ” in a statement on Sunday.

“It’s no surprise that someone who makes a living glorifying crime and violence is a cop-hater, too. The police officers that Quentin Tarantino calls ‘murderers’ aren’t living in one of his depraved big-screen fantasies – they’re risking and sometimes sacrificing their lives to protect communities from real crime and mayhem,” said Lynch, adding, “It’s time for a boycott of Quentin Tarantino’s films.”

The rally comes just days after an officer was fatally shot in the head while chasing down a gunman amid a shoot-out between rival gangs in New York City, according to the New York Post.