The incident happened on Lenox Avenue in Harlem back on July 7.
Body camera footage shows Officer Ronald Kennedy yelling for someone to get him a potato chip bag before asking two people to help him lay the victim down on his back.
He then used the tape to secure the bag over the wound.
It stopped the bleeding enough to keep the victim alive until an ambulance arrived.
“The effect was immediate and apparent,” NYPD Officer Matthew Grieve said. “As soon as Ron finished basically getting that dressing on there, that bag of chips, right away we noticed it, a drastic improvement in his condition.”
The victim was rushed to Harlem Hospital and is still recovering.
There is no word yet on whether a suspect was arrested for the stabbing.
Copyright © 2021 WABC-TV. All Rights Reserved.
Originally published at https://abc7ny.com/nypd-ronald-kennedy-hero-stabbing/10899513/ on .