The city's two highest-ranking police officials appeared Wednesday to testify before a federal grand jury believed to be investigating the mayor's use of police-issued bodyguards and other matters.
Acting police Chief Regina McDonald and Deputy Chief Paul Donaldson entered the grand jury room at about 9 a.m. and left about two hours later, declining to offer specifics.
"Can't tell you anything," McDonald said as she left. "We're not permitted to talk."
"We were just here to assist them with the investigation," Donaldson said.