Roberta Kaplan, the lawyer who challenged Mississippi's gay marriage ban and won, said this week that a “religious freedom” law might violate the federal judge's order that struck down the marriage ban.

Earlier this month, Republican Governor Phil Bryant signed a bill into law that protects opponents of marriage equality. House Bill 1523, which takes effect July 1, states that clerks may recuse themselves from issuing marriage licenses when their “sincerely held religious beliefs” dictate that “marriage is or should be recognized as the union of one man and one woman.” Such a recusal cannot “impede or delay” marriage licensing, the law states.

“[W]e have serious concerns about compliance with the July 2015 injunction in light of the recent enactment of HB 1523,” Kaplan wrote in a letter to Bryant, Attorney General Jim Hood and the registar of vital records.

“HB 1523 is absolutely silent as to how the right of all Mississippians who seek to legally marry, including gay men and lesbians, will be protected under this new 'recusal' system.”

Kaplan asked the officials to let her know when any clerk plans to opt-out from issuing a marriage license and what steps the state would take to “ensure gay and lesbian couples are not impeded or delayed when seeking to marry.”

“Please let us know no later than May 2, 2016 whether you will comply with the above request, either in whole or in part, so we can be in a position to evaluate whether we will need to seek further relief from the Court,” Kaplan concludes her letter.

Kaplan also represented the plaintiff in the 2013 Supreme Court case that struck a severe blow to the Defense of Marriage Act (DOMA), the law that blocked federal agencies from recognizing the legal marriages of gay couples.