More than 60 women have had their phones and sometimes purses snatched by thieves on mopeds in recent weeks in New York City. Just last week, the New York City Police Department released surveillance video of a 52-year-old woman being dragged violently by thieves on a scooter as they robbed her of her bag, phone, credit cards, keys, glasses, identification, and $60.

“They’re essentially ghost criminals,” NYPD Commissioner Edward Caban said. “No criminal history. No photos. No cellphone. Sometimes we’re even unclear on name or a date of birth.”