Watch , understand and enjoy 

John Bercow  is a British politician who has served as Speaker of the House of Commons 
since 22 June 2009, and has been Member of Parliament (MP) for Buckingham since 1997.
Before his election as Speaker, he was a Conservative Party member.

After 10 years as House of Commons Speaker, John Bercow
will be leaving by 31 October.
He is Well known for his theatrical shouts of 'Order'
to turbulent MPs in the House of Commons.

----------------------------------------

The Speaker of the House of Commons
presides over the House's debates, determining which members may speak. 
The Speaker is also responsible for maintaining order during debate,
and may punish members who break the rules of the House. 

Wikipedia