More than 4,000 police officers will be on duty tomorrow for Baroness Thatcher's funeral, Scotland Yard said today.
The Metropolitan Police also revealed that "a small number" of protesters have contacted them to say that they plan to demonstrate during the event.
The force is running a joint operation with City of London Police and British Transport Police.
Commander Christine Jones said, "We have been approached by a small number of people planning to protest. We are working with them, and would ask anyone who plans to protest to come forward and speak with us today".
"We will continue to review our intelligence and evidence picture, and although to date no arrests connected to the ceremonial funeral have yet been made, should the need arise to arrest those who are committing acts of crime or violence, or conspiring to do so, we will respond accordingly".
54 percent of those surveyed for the ITV News Index say they are not interested in watching coverage of Baroness Thatcher’s funeral.
The poll, carried out by ComRes, also found that a third (31%) of those polled disagreed with the statement and 15 percent didn't know.
Nearly two-thirds of British people agree that the police should stop any protest from disrupting the funeral of Baroness Thatcher, according to the ITV News Index.
The poll, carried out by ComRes, also found that 23 percent disagreed with the statement, while 12 percent didn't know.
Commons speaker John Bercow has announced that the bells of Big Ben and the Great Clock at Westminster are to be silenced during the funeral of Baroness Thatcher on Wednesday.
The House of Commons authorities has said the last time the bells were silenced were for Winston Churchill's funeral in 1965, except in the 1970s when they broke down.
Baroness Thatcher's grandchildren, who both live in Dallas in the US, have arrived in the UK ahead of their grandmother's funeral on Wednesday.
They posed outside Baroness Thatcher's London home for photographs today along with their father Mark and his wife Sarah.
Both Amanda and Michael will be playing a role in the proceedings at St Paul's Cathedral.
The Prime Minister's press spokesman declined to comment on George Galloway's attempt to try and block Government plans to cancel Wednesday's Prime Minister's Questions session to allow MPs to attend Baroness Thatcher's funeral.
The spokesman said:
Major Andrew Chatburn, the man in charge of choreographing the parade, said the rehearsal went "very well".