Surrey Chief Constable Bob Quick is moving back to the Met

Bob Quick has been appointed as Assistant Commissioner Specialist Operations for the Metropolitan Police.

It has been described as "one of the toughest jobs in UK policing" by the Met's commissioner, Sir Ian Blair.

Mr Quick takes over from Andy Hayman, who announced his retirement in December after it was revealed he faces an investigation into expenses claims.

Mr Hayman had also come under increasing scrutiny after the death of Jean Charles de Menezes at Stockwell Tube station in south London in July 2005.

I have no doubt the person with the right skills and experience has been chosen Sir Ian Blair

A report found he misled the public in the immediate aftermath of the Brazilian's shooting.

Mr Quick will take on responsibility for counter-terrorism, specialist protection and royalty protection.

"I am delighted to welcome an officer of Bob Quick's calibre to the management board of the Metropolitan Police," said Mr Blair.

"Protecting London against terrorism will remain the Met's number one priority for the foreseeable future and taking the strategic lead in that at assistant commissioner level requires real dedication and commitment."

Andy Hayman announced his retirement in December

The post is for a five-year fixed term and carries a salary of �168,006 plus benefits.

Mr Quick was appointed chief constable of Surrey Police in November 2004 after joining as deputy chief constable in 2003.

Before joining Surrey, he was commander for territorial policing in London, with responsibility for investigation and reduction of street and vehicle crime, burglary and serious crimes such as rape.

His career began with the Met in 1978.

He has a masters degree in business administration, a diploma in applied criminology and is currently completing a masters degree in strategic leadership.

Mr Quick received the Queen's Police Medal in the 2003 New Year's Honours List.

Speaking on Friday, he said: "While I am delighted at the new position and the challenges it will inevitably bring, this is tinged with sadness at leaving Surrey Police where I have spent five hugely enjoyable years."

Mr Quick went on to wish his successor well "as it is clear that with the funding situation and changes in demands, they will face challenging times".

"They will however be welcomed and receive excellent support from officers and staff whom I have had the privilege to lead and get to know over the last five years."