A charge of indecent assault against a woman demonstrator accused of squeezing a police officer's bottom has been dropped, a court has heard.
Artist Louise Danby, of Whitechapel, east London, now faces a charge of obstructing a police officer.
She was arrested at a protest outside the Greek Embassy in central London on 24 November.
Ms Danby, 37, pleaded not guilty at West London Magistrates' Court and will return to court on 8 April.
Prosecutor Nigel Drewry told the court that the indecent assault charge was dropped after a full review of the case by the Crown.
"Obstruction of a police officer is a more suitable charge and the indecent assault charge is now withdrawn," he said.
Defence lawyer Gerry White said he expected to call one witness and show video footage at next year's hearing at Marylebone Magistrates' Court.
The protest was in support of anti-globalisation protester Simon Chapman who was jailed by the Greek authorities.
He has since been granted bail.