They should also take a power bank to charge their phone and food and drink to consume en route, although they won’t be able to take it. People have been told not to bring or set up gazebos or tents, or light barbeques and fires. The Metropolitan Police will be on alert with 10,000 officers to be deployed over the coming days, while 1,500 soldiers will be available to support crowd control.

Are any items prohibited?

Prohibited items, which will be confiscated, include folding chairs, sleeping bags, bars, hammers, cigarettes, whistles, cameras and flags. Flowers and other tribute items such as candles, soft toys and photographs are also not permitted. Banners, posters and advertising and marketing messages are prohibited.

Is there a dress code?

People should dress appropriately and not wear clothes with political or offensive slogans. Filming will be prohibited. As for behaviour, the document tells people to remain silent inside the Palace of Westminster, with their phones on silent.