A Bellmore man who is on a Brooklyn police gang unit was arrested Saturday after he punched his 3-year-old son in the face, court documents show.

Jason Sharp, 37, of Bellmore is charged with three misdemeanor counts of third-degree assault, endangering the welfare of a child and fourth-degree criminal mischief.

He was arraigned on Sunday at Nassau County First District Court in Hempstead, where Judge Fred J. Hirsch ordered Sharp released on his own recognizance.

The judge also granted three temporary orders of protection barring Sharp from harassing his wife, his son and a 5-year-old child.

The New York Police Department confirmed last night that Sharp is an officer on the Brooklyn gang unit but had no immediate information about his tenure with the department or status after the arrest.

Authorities contend Sharp punched his 3-year-old son in the face, "causing swelling and bruising to the victim's right eye, cheek and the bridge of his nose." The boy's injuries "necessitated treatment at a hospital," according to a Nassau police statement in court documents.

According to Nassau police, the boy told them, "My daddy punched me in the face."

The incident occurred about 4:30 a.m. Saturday, records show.

Authorities also say Sharp punched a hole in the wall of a hallway on the second floor of his Bellmore home while arguing with his wife.

Nassau police said Sharp told them, "I had an argument with my wife and punched the wall, I had a few drinks today."

Sharp is due back in Nassau First District Court in Hempstead on March 18.

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