Lockdown has been extended for three weeks, Foreign Secretary Dominic Raab, who is standing in for the Prime Minister as he recovers from coronavirus in his Chequers country home, announced

last night. Now, police officers have issued guidelines on what is a ‘reasonable’ excuse to leave the house, including but not limited to food shopping. The three-page document has been

produced by the National Police Chiefs' Council (NPCC) and the College of Policing, and appears to be drawn from guidelines issued by the Crown Prosecution Service. Entitled "what

constitutes a reasonable excuse to leave the place where you live", the document has never been made public before. And while it was designed to help police enforce the emergency

would start to look in people's shopping trolleys if they continued to flout the rules. But what are the new rules, and what do they really mean for me and you? Express.co.uk takes a

look. READ MORE: UK LOCKDOWN END DATE: WHAT IS THE NEW LOCKDOWN END DATE? [INSIGHT] POLICE LOCKDOWN MEASURES IN FULL Acts which are allowed include buying a small amount of a staple item or

necessity and buying tools to repair a fence broken down by bad weather. Brits will also be allowed to stop to eat lunch to break up a long walk, or driving to the countryside and walking,

where the idea is that more time will be spent walking than driving. Employees will still be allowed to travel to work, whether or not they fall under the key worker category, as long as

they are not able to do this work from home. However, police have also issued some non-reasonable reasons for going out, which they expect nobody to do. People have been told they are not

allowed to be working from home in a local park or public bench for long periods of time. Scroll down for a full breakdown of the new rules. BACK BRITAIN'S BRAVE NHS HEROES - CLICK HERE

NOW  The three-page document, which was released on Thursday and entitled “what constitutes a reasonable excuse to leave the place where you live”, is designed to help police enforce the

lockdown measures. The set of rules was produced by the National Police Chiefs’ Council (NPCC) and the College of Policing, and appears to be drawn from guidelines issued by the Crown

Prosecution Service. A spokesman from the College of Policing said the information had already been published for forces before the Easter Bank Holiday Weekend. They added: “It was designed

to help officers remain consistent with criminal justice colleagues.” The new rules come as Foreign Secretary Dominic Raab announced the Government would be extending the lockdown measures

in place for another three weeks, subject to review. Speaking at the daily press conference at Downing Street, Mr Raab said: “There are indications that the measures we have put in place

have been successful in slowing down the spread of this virus. “But SAGE (Scientific Advisory Group for Emergencies) also say that is a mixed and inconsistent picture and, in some setting,

infections are still likely to be increasing.” DON'T MISS UK SNP ROW TO ERUPT - BLACKFORD IGNORES DOWNING STREET LOCKDOWN CLAIM - ANALYSIS  DOMINIC RAAB REVEALS FIVE KEY THINGS THAT

WILL HELP END LOCKDOWN - INSIGHT DOMINIC RAAB URGES BRITONS TO STAY STRONG AS HE EXTENDS LOCKDOWN - WATCH The R0 value, the rate of infection, was “almost certainly below one in the

community”, meaning infected people were passing the virus on to less than one person on average. Mr Raab continued: “But overall, we still don’t have the infection rate down as far as we

need to. “We’ve come too far, we’ve lost too many loved ones to ease up now, especially when we’re beginning to see that our efforts are starting to pay off. “There is light at the end of

the tunnel but we are now at both a delicate and a dangerous stage in this pandemic. “If we rush to relax the measures that we have in place we would risk wasting all the sacrifices and all

the progress that has been made. “That would risk a quick return to another lockdown with all the threat to love that a a second peak of this virus would bring and all the economic damage

that a second lockdown would carry. “We need to be patient a while longer, so please please stay at home, save lives and protect the NHS.” But while Mr Raab says lockdown is extended for

three weeks, Nadine Dorries has been bandying around another figure - and it could mean we're in lockdown for a whole lot longer than anticipated. Ms Dorries has said the UK will be in

"full lockdown" until a coronavirus vaccine has been made - which experts say won't become unavailable for at least 18 months. The health minister said on Twitter:

"Journalists should stop asking about an ‘exit strategy.’ "There is only one way we can ‘exit’ full lockdown and that is when we have a vaccine. "Until then, we need to find

ways we can adapt society and strike a balance between the health of the nation and our economy."