Following the abduction and killing of an 8-year-old Brooklyn boy last week, Borough Park City Councilmember David Greenfield has proposed legislation to create so-called safe havens for kids to seek refuge.

The proposal would designate pre-approved stores or residences as "Safe Havens" and mark them with green window stickers. Owners — who, along with employees, would undergo background checks — would be instructed to call the police while providing shelter for a lost or otherwise distressed child.

Greenfield said he's still working out the details about which city agency would administer the proposed system, but plans to introduce the bill when the council reconvenes after its summer recess.

The announcement came Wednesday as the city medical examiner ruled Leiby Kletzky's death as a homicide, saying the child was given four drugs before he was smothered to death.

Accused killer Levi Aron, 35, has been in custody since July 13. He has pleaded not guilty to first-degree murder and kidnapping.