Thousands of England football fans are flying to Portugal on Friday, ready for the start of Euro 2004.
Up to 60,000 England fans are expected at the tournament
British and Portuguese police are mounting a big security operation to prevent hooliganism.
Three thousand England fans are already in Portugal - more than 10 times that number are expected to follow in the next 48 hours.
Police monitoring ports and airports have stopped 22 people, about whom they had intelligence, from leaving Britain.
Five have now received banning orders preventing them from attending the championships.
Another six have been given bail conditions that prevent them from
Ten others are waiting to appear in court.
And one is free to travel to Portugal after being released by the court.
Many England fans arriving on flights to the Algarve said they had been surprised by what they considered the low level of policing as they left the UK.
In Portugal, 24 British police officers are working alongside their Portuguese colleagues.
They are acting as spotters, looking out for potential troublemakers, reports BBC correspondent Damian Grammaticas in Lisbon.
Meanwhile three alleged English ticket touts have been arrested on the Algarve.
England fans in the Algarve, Jonathan Connolly and Mark Dudgean, both of Burnley, told BBC News Online some tickets were changing hands for £700.
They had bought their tickets on the internet, they added.
"We paid £350 each for France tickets and £300 for Switzerland - but we would spend whatever it takes."
Portuguese police say it is an offence for anyone to buy or sell tickets on the black market.
While police will be on the lookout for drunken behaviour they will not arrest England supporters for smoking cannabis in
the streets, despite it being illegal, the Guardian reported.
The stance was adopted after recommendations from Dutch authorities which said
the approach worked successfully when they policed the English during Euro
Isabel Canelas, a spokeswoman for the Portuguese police, said: "Everyone
knows that everyone here can smoke. The police are doing another kind of job and
their priorities are different.
"We won't be hiding behind doors waiting for someone to smoke a joint. We
have to use common sense.
"If people are smoking but not kicking each other, and
not making a problem, why on earth would an officer go and ask 'Is that
But the head of the English police team in Portugal, Staffordshire Police deputy
Deputy Chief Constable David Swift told BBC News: "English people should be adhering to the standards of
law that we follow at home.
perspective it would be quite an unusual sight to see two or three thousand
England fans draped in their flags 'whiffing a bit of blow', or whatever we are
calling it these days."
Deputy Chief Constable Swift also denied banned hooligans were on their way to Euro 2004.
"There is a lot of myth attached to that," he told BBC News.
"If you have
actually got people's passports, I don't think it is as easy as people
The police had the passports of more than 2,000 of the 2,300 England fans subject to banning orders, Deputy Chief Constable Swift said.
"Obviously some of the individuals will make an awful lot of claims - we know
one or two have been speaking to the press, but we have visited their homes and
know they are still there," he told BBC News.
Most England fans were decent people, Deputy Chief Constable Swift said.
But he added: "You do not get that many people, a substantial number of whom have had
drink, without there being a risk."
A suspected football hooligan was arrested on Friday after trying to board a
flight to Europe.
Carl Power, 39, of Wirral, Merseyside, will appear before Liverpool
magistrates after being arrested attempting to board a
flight from the city's John Lennon Airport to Palma, Spain.
After running his name through a national database, police discovered he is
on bail facing a charge of conspiracy to cause violence after being arrested in February in a crackdown on violence between Tranmere Rovers and
Meanwhile, defender John Terry will miss England's Euro 2004 opener against France on Sunday, after failing a fitness test.