Writing on Twitter, Yevgenia Albats said a court would convene to hear her case tomorrow.
"Over what?" she said in a tweet yesterday. "Over nothing."
Reached by AFP today, Albats declined comment.
She said earlier that several traffic police had stopped her car on a busy Moscow street yesterday and requested to see her identification.
She said she had complied but had nevertheless been accused of disobeying police.
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"I have not violated a single law," Albats said on the popular Echo of Moscow radio. She indicated her case may be politically motivated but declined to elaborate.
Disobeying police or other representatives of the Russian authorities is punishable by a small fine or up to 15 days in jail.
With a relatively small print run, the weekly magazine known for its searing covers and uncompromising anti-Kremlin stance, punches above its weight.
Along with the opposition newspaper Novaya Gazeta and Echo of Moscow radio station, the magazine has served as a safety valve of sorts, giving Kremlin critics a platform to air their views.