Concerns have been raised after women's safety volunteers were among those arrested at the King's Coronation this weekend, as rape alarms were seized.
The Metropolitan Police made 64 arrests on coronation day (Saturday 6 May), with 46 people bailed after being detained on suspicion of causing a public nuisance or breaching the peace.
Campaigners have condemned the arrests of protesters as a deliberate attempt to "disrupt" and "diminish" dissent. Graham Smith, chief executive of the anti-monarchy Republic campaign group who was detained on Saturday, accused Scotland Yard of having 'every intention' of arresting demonstrators.