The force's chief of detectives, Robert Boyce, said the NYPD was working with New York's attorney general to gather enough evidence before obtaining an arrest warrant for the disgraced Hollywood producer.
COPS in NY say they may have case against Harvey Weinstein over Boardwalk Empire actress Paz de la Huerta's claims the Hollywood mogul raped her. She has publicly accused Weinstein of raping her twice in her apartment in 2010 and called police about it on October 26.
Detectives say her story is believable and have corroborated parts of her story.
"We have an actual case here", Boyce said.
The accuser, an actress who came forward 10 days ago, told NYPD investigators Weinstein raped her in Lower Manhattan on two different occasions that year, police sources said.
"Immediately when we got inside the house, he started to kiss me and I kind of brushed [him] away", de la Huerta said.
Police in Los Angeles, Beverly Hills and London have also said they are investigating sexual assault allegations against Weinstein but no charges have been brought against him. Just before Christmas that year, she alleges, he showed up in the lobby of her apartment building.
"I was in no state", she said.
The investigation comes a month after The New York Times published an expose of sexual harassment allegations against Weinstein, leading to his firing from the company he co-founded and his expulsion from the organization that bestows the Academy Awards.
Is there enough evidence for prosecutors to file charges against Weinstein?
The Manhattan District Attorney's office told CNN they have a sex crimes prosecutor assigned to an "active investigation" into the alleged incidents.
"We immediately contacted the district attorney in NY and we started working the case together".
Weinstein spokesperson Holly Baird issued a statement to USA TODAY Friday: "Any allegations of non-consensual sex are unequivocally denied by Mr. Weinstein".