About 120 people have been arrested outside Buckingham and Kensington Palaces in the last five years, Scotland Yard has revealed.
The Metropolitan Police refused to give a breakdown of what the arrests were for, saying it would "negatively affect security measures".
The figure was released in a Freedom of Information request by The Sun.
"To provide a breakdown of arrest data would negatively affect the security measures in place and therefore prejudice law enforcement," The Met said:
It comes after Mohiussunnath Chowdhury was arrested outside Buckingham Palace with a samurai sword.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
The 26-year-old was detained after allegedly driving towards a marked police car in a blue Toyota Prius on Constitution Hill at around 8.30pm on August 25.
Police said he reached for the sword and yelled "Allahu Akbar" as he was tackled by officers and sprayed with CS gas.
