New York Police Department
An New York City Police Department officer is accused of assaulting a man over a spilled drink. In this photo, a New York City Police Department (NYPD) officer pauses while visiting the North pool during a commemoration ceremony for the victims of the September 11 terrorist attacks at the National Sept. 11 Memorial, September 11, 2017 in New York City. Getty Images

A New York Police Department (NYPD) officer who allegedly assaulted a man from Coney Island in July over a spilled drink is expected to turn himself in Monday to get arraigned in Brooklyn Supreme Court, a report said.

The officer, O’Keefe Thompson, could be imprisoned for four years if convicted.

According to reports, Thompson was on modified duty — temporary work assignment for a worker who is recovering from an illness or injury — July 8 when he allegedly assaulted Raymond Crespo.

Crespo was on Mermaid Avenue and W. 32nd St. on the day of the incident when one of his friends knocked his alcohol-filled cup onto the ground; the cup rolled toward Thompson and some of the drink splashed onto his foot, the New York Daily News reported.

Crespo said the officer asked him to clean up the mess but the 22-year-old refused.

This infuriated the officer who allegedly pushed Crespo against a nearby deli gate and then to the ground.

“At that point he rushed me, but I went into the store,” Crespo said, adding he latched onto the gate to try to stay inside the store, but to no avail.

“As soon as I let go of the gate, I hit it on the right side of my eye. And boom, I let go of the door, I come outside, and he’s dragging me,” Crespo said.

During the confrontation, Crespo also taunted Thompson to arrest him but the officer did not. Following the altercation, Crespo said he suffered a concussion and a bruised eye, according to the New York Daily News.

When Crespo was hospitalized in Coney Island Hospital, he reported about the incident and was also interviewed by Internal Affairs Bureau.

Crespo said Thompson also tried to threaten him later over revealing his name to the authorities. Crespo said: "He was over my body saying, ‘You’re going to s--- on my name? You’re gonna really s--- on my name. You know what I should do to you.'"

Instances like these where officers have assaulted people for not obeying them are plenty.

In May, an off-duty state correction officer, Kyesha Crafton, pushed an 87-year-old man for smoking inside a Brooklyn pizzeria despite the old man apologizing for his act.

Crafton was arrested and charged with assault, according to the New York Daily News.

The victim, Andrea Chiarappi, said: "I went to get a bottle of water in the store. Unfortunately I had a cigarette in my hand because I was gonna go in and out."

Chiarappi said Crafton was standing by the door and complained about him carrying the cigarette.

"I understood," he said, and then he extinguished it before walking to the officer to say sorry.

“Instead of accepting my apology, she was yelling at me,” he said. “She pushed me from the back and she slammed my shoulder into the edge of the door.”

The old man suffered cuts to his shoulder and knees and bruises to his arm, officials said.

In April 2016, a pair of NYPD detectives was busted for assaulting a a mailman who had given directions to a maniac who killed two police officers, the New York Daily News reported.