London, Mar. 22 : United Kingdom’s new anti-terror strategy, which will be unveiled by Home Secretary Jacqui Smith next week, is claimed to be the most comprehensive counter-terrorism approach issued by any government in the world.

According to a Home Office spokesman, Smith wants the paper to go into more detail than ever before about how the authorities are seeking to prevent atrocities from happening and respond to attacks which take place.

The strategy will reflect security services'' judgment that the most serious terror threat to the UK continues to come from Osama bin Laden''s al Qaida network, the Daily Star reports.

Experts have spent a year preparing the document, known as Contest Two, to take into account lessons learnt from recent Mumbai terror attacks.

The new paper, to be published on Tuesday, will update the Contest strategy developed by the Home Office in 2003 and detailed in the Countering International Terrorism document in 2006.

Earlier, UK’s anti-terror strategy has been based o four Ps--- Prevent, Pursue, Protect and Prepare, which ensured that the country was ready for the consequences of any attack.

The Home Office spokesman said the new paper would take account of the way the terror threat has evolved and how the authorities are learning lessons from events.

Since 2007, the Joint Terrorism Analysis Centre has termed the terrorism threat level as "severe", which means that future terrorist attacks are highly likely but not thought to be imminent.

By 2011, Britain will be spending 3.5 billion pounds a year on counter-terrorism.

Between 2001 and 2008, almost 200 people have been convicted of terror-related offences. (ANI)