RICHMOND, Virginia — The marshal of the United States Supreme Court has asked Maryland and Virginia officials to enforce laws she says prohibit picketing outside the homes of the justices who live in the two states.

“For weeks on end, large groups of protesters chanting slogans, using bullhorns, and banging drums have picketed Justices’ homes,” Marshal Gail Curley wrote in the Friday letters to Governor Hogan of Maryland, Governor Youngkin of Virginia, and two local elected officials.

Ms. Curley wrote that Virginia and Maryland laws and a Montgomery County, Maryland, ordinance prohibit picketing at justices’ homes, and she asked the officials to direct police to enforce those provisions.

Justices’ homes have been the target of abortion rights protests since May, when a leaked draft opinion suggested the court was poised to overturn the landmark 1973 Roe v. Wade case that legalized abortion nationwide.

The protests and threatening activities have “increased since May,” Ms. Curley wrote in a letter, and have continued since the court’s ruling overturning Roe was issued last week.

“Earlier this week, for example, 75 protesters loudly picketed at one Justice’s home in Montgomery County for 20-30 minutes in the evening, then proceeded to picket at another Justice’s home for 30 minutes, where the crowd grew to 100, and finally returned to the first Justice’s home to picket for another 20 minutes,” Ms. Curley wrote in her letter to the Montgomery County executive, Marc Elrich. “This is exactly the kind of conduct that the Maryland and Montgomery County laws prohibit.”

In her letter to the chairman of the Fairfax County Board of Supervisors, Jeffrey McKay, she said one recent protest outside an unspecified justice’s home involved dozens of people chanting, “no privacy for us, no peace for you”.

The letters from Ms. Curley were dated Friday and shared with reporters by the Supreme Court on Saturday.

Ms. Curley’s request came about a month after a California man was found with a gun, knife and pepper spray near the Maryland home of Justice Brett Kavanaugh after telling police he was planning to kill the justice. The man, Nicholas John Roske, 26, of Simi Valley, Calif., has been charged with attempting to murder a justice of the United States and has pleaded not guilty.

Messrs. Youngkin and Hogan, both Republicans, have both previously expressed concerns about the protests. In May, they sent a joint letter to Attorney General Garland asking for federal law enforcement resources to keep the justices safe and enforce a federal law they said prohibits picketing with the intent to influence a judge.

A Hogan spokesman, Michael Ricci, said in a statement Saturday that the governor had directed state police to “further review enforcement options that respect the First Amendment and the Constitution.” 

He also said that “had the marshal taken time to explore the matter,” she would have learned that the constitutionality of the Maryland statute she cited has been questioned by the state Attorney General’s Office.

Mr. Elrich said he had no record of having received the letter addressed to him and questioned why it was released to the press. He said he would review it and was willing to discuss it with Ms. Curley, but defended the job Montgomery County Police have done so far.

“In Montgomery County we are following the law that provides security and respects the First Amendment rights of protestors. That is what we do, regardless of the subject of the protests,” he said.

A Youngkin spokesman, Christian Martinez, said the Virginia governor welcomed the marshal’s request and said Mr. Youngkin had made the same request of Mr. McKay in recent weeks.

“The Governor remains in regular contact with the justices themselves and holds their safety as an utmost priority. He is in contact with state and local officials on the Marshal’s request for assistance and will continue to engage on the issue of the Justice’s safety,” Mr. Martinez said.

Mr. Youngkin in May pushed for a security perimeter around the homes of justices living in Fairfax County, but Mr. McKay rebuffed that request, saying it would infringe on First Amendment protest rights. Mr. Youngkin also attempted to create a new felony penalty for certain actions during demonstrations aimed at judges or other officers of a court, which state lawmakers rejected.

A spokesperson for Mr. McKay said he was working on a response to the letter.