More than 200 people, many of them former sex workers, have signed an opposition letter publicly criticizing a bill that would decriminalize sex work in the nation’s capital.The Community Safety and Health Amendment Act of 2019 was introduced by D.C. council member David Grosso, an independent, on June 4. If passed, it would remove criminal penalties for commercial sexual exchanges, such as prostitution, for those 18 years and older. The letter, obtained by ABC News, was sent directly to the council Oct. 1.

Rev. Dr. Marian Hatcher, the letter’s author and a self-proclaimed survivor of the sex trade, is one of the bill’s critics. Hatcher said in the letter that she doesn’t oppose decriminalizing prostitution but feels the legislation would open the door for sex trafficking, brothels, pimping and violence against women in the district.

“We are horrified by the proposal to decriminalize informal brothels throughout the District. This, paired with the decriminalization of sex-buying, would surely fuel the trafficking and exploitation of countless other vulnerable groups,” she wrote, calling on council members to vote against the legislation.

The bill was co-sponsored by nearly a third of the city council and backed by dozens of local and national organizations, Grosso said in a statement before introducing the bill.

“By removing criminal penalties for those in the sex trade, we can bring people out of the shadows, help connect them to the services they need to live safer and healthier lives, and more easily tackle the complaints we hear from communities about trash or noise,” his statement said.

If passed, the bill would make D.C. the first place in the U.S., outside of a few counties in Nevada, where prostitution and sex work is decriminalized. Similar bills have been introduced in Maine, Massachusetts and New York.

Speaking Tuesday with Devin Dwyer, anchor of ABC News’ “The Briefing Room,” Yasmin Vafa, executive director of the anti-violence nonprofit Rights4Girls, also expressed concerns about the bill.

“What this would do is actually repeal the laws against pimping and pandering, purchasing sex and brothel keeping, which we’re concerned would actually fuel exploitation of vulnerable communities,” she said.

Vafa said since the bill’s introduction, many sex-trade survivors between 9 and 24 years old have approached her organization, voicing their concerns. In response, Rights4Girls initiated a closed-door listening session with members of the council interested in hearing from them directly.

Supporters of the bill haven’t remained silent either. They wrote their own letter, which was signed by more than 70 community and national LGBTQ organizations on Wednesday.

Collective Action for Safe Spaces, an advocacy organization supporting safety protections for sex workers, will hold a round table next week at city hall. A tweet from the coalition this week called on the D.C. Council to approve the legislation.

Sex workers need housing, not incarceration or violence from police. @councilofdc needs invest in their safety and protection, because everyone has a right to work without the risk of being harmed or killed for doing so.

— Collective Action for Safe Spaces (@SafeSpacesDC) October 2, 2019