Opponents of Anchorage's Proposition 5, which would bar discrimination based on sexual orientation, say if approved offenders could be jailed.

If approved on April 3, Proposition 5 would add sexual orientation and gender identity to the Anchorage Equal Rights Initiative. Religious organizations would be exempted from the law. The Anchorage Assembly approved a similar ordinance in 2009, but it was vetoed by Mayor Dan Sullivan.

In a radio ad released this week by the group against Proposition 5, listeners are told employers “will be forced to change their hiring practices or face steep fines and up to 30 days in prison.”

“People who operate their business in Anchorage would have to violate their conscience or be threatened with lawsuits and eventually 30 days in jail if they refuse to violate their conscience,” Jim Minnery, a spokesperson for the group Protect Anchorage – Vote No On Prop 5, told NBC affiliate KTUU.

Trevor Storrs, a spokesperson for the Yes on 5 campaign, disagreed, saying that the only people facing jail time would be those interfering with an official investigation.

“Interference could be like perjury, destruction of files, not showing up, things of that nature. Anything that prevents them from completing an appropriate investigation,” Storrs said.