A California city voted to criminalize “aiding” and “abetting” homeless camps Tuesday – an unusual move that advocates say could stifle aid to help for people who need it.

The ordinance, which allows the city to fine those who help the homeless and makes it illegal for homeless people to camp on public property, was approved in a 6-1 vote after more than two hours of public comments.

Outreach workers in the California city of Fremont worry the new homelessness ordinance could target them, despite assurances from the city.

The ordinance, which prohibits camping on all public property and allows prosecutors to criminally charge anyone “aiding” or “abetting” a homeless camp.

The move follows a landmark U.S. Supreme Court ruling this past June allowing local officials to ban people from camping in public places. Fremont’s measure could be the Bay Area’s most aggressive response yet — potentially setting a precedent for other cities.

Officials in Fremont approved a strict new ordinance banning homeless encampments on all public property, which included a controversial provision that has raised concerns among workers who provide outreach to the unhoused.

Fremont’s plan to ban homeless camps anywhere in the city has the potential to be the most forceful response yet in the Bay Area to a landmark U.S. Supreme Court ruling this summer granting officials broad authority to police homelessness — and could have ripple effects across the region.

The city of Fremont has been thrust into the national spotlight this week for adopting a stringent public camping ban that also makes it a crime to “aid” or abet” any violation of the new law. The aiding-and-abetting language has raised fears among advocates for homeless people that anyone helping people living in encampments could soon have a target on their backs.