By Ronan Farrow at The New Yorker.

After a seven-month investigation, the producer Harvey Weinstein turned himself in to the New York Police Department's First Precinct on Friday morning to face sexual-assault charges. According to law-enforcement officials, the charges against Weinstein are based on the allegations of two women. One is Lucia Evans, a marketing consultant and former aspiring actress who told The New Yorker last October that Weinstein sexually assaulted her in his Manhattan office, in 2004. The day after the publication of that story, police detectives began trying to meet with Evans about filing a formal criminal complaint. One of the police sources called Evans “a highly credible witness with corroborating evidence.” In an interview on Thursday, Evans confirmed that she was pressing charges against Weinstein. “At a certain point, you have to think about the greater good of humanity, of womankind,” she told me....

The day after the New Yorker story was published online, two detectives drove to upstate New York to visit Evans’s parents at their home.... The officers had told her that they might not be able to bring charges without her coöperation. “They said that if I do nothing, Harvey would walk,” Evans said. “I think the significance hit all at once.” Evans said that she initially felt “proud to be a part of this movement, just knowing I could do this for everybody.”...

After months of what Evans described as sleepless nights, she decided to proceed with the complaint against Weinstein. “We gave her time,” a source involved in the investigation said. “We worked with her gradually to make sure she was comfortable. Even when she came in and told us the story in the D.A.’s office of what had happened, we still weren’t, like, ‘Boom, it’s going forward.’ ”