A Brooklyn man faces charges of unlawful surveillance after he placed his cellphone camera lens under the skirts of two women at Belmont Park racetrack in Elmont on Saturday, Nassau County police said.

According to Fifth Squad detectives, an NYPD officer on duty at the racetrack noticed Samuel Jackson, 28, of Union Street approach two women from behind and place his cellphone camera under one of the victim’s skirts, police said.

He then positioned the cellphone camera underneath the other victim’s skirt. The women, both 19, were unaware of Jackson’s actions, police said.

Jackson was taken into custody at 6:40 p.m. and charged with two counts of unlawful surveillance.

Jackson is a practicing attorney and graduated from Fordham University School of Law, News 12 Long Island reported, based on courtroom statements.

Jackson could not be reached for comment.

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At his arraignment Sunday, Nassau District Court Judge Joseph Girardi set bail at $2,500 cash or bond, said district attorney spokesman Brendan Brosh.

Jackson is due back in court on Wednesday.

With Nicole Fuller