The prosecutors have also insisted DiGaudio's alleged behaviour hasn't tainted the case.
Weinstein has denied the allegations of non-consensual sex.
Meanwhile, the movie mogul recently admitted he's experienced "the worst nightmare" of his life over the last 12 months.
Weinstein has been exiled from Hollywood after being accused of sexual misconduct by dozens of women after an expose was published in the New York Times newspaper in October 2017.
In an email sent out to several people he previously worked with, he wrote: "I've had one hell of a year... The worst nightmare of my life.
As you can see from these articles, the police have played a very difficult role in my investigation. All 3 police officers have either been retired or repositioned from the SVU. The articles are self-explanatory but I'd like to speak to you on the phone if you have some time.
"There is more to this story... I appreciate your confidentiality.
"Have a read of these articles. I wish I didn't have to ask but I'd be very appreciative of your time. Best, Harvey (sic)"