A man has admitted trying to harm the Queen after being caught in the grounds of Windsor Castle with a loaded crossbow.Jaswant Singh Chail, 21, pleaded guilty to three charges, including an offence under the Treason Act, during a hearing at the Old Bailey on Friday.The most serious charge under Section Two of the Treason Act said that “on December 25 2021 at Windsor Castle, near to the person of the Queen, you did wilfully produce or have a loaded crossbow with intent to use the same to injure the person of Her Majesty Queen Elizabeth the Second, or to alarm her Majesty”.