PARIS - The French tourism office said Tuesday it expects fewer tourists than usual in the French capital during the June 10-July 12 World Cup. And Jean Tiberi, the mayor of Paris, said there were still many rooms available. With approximately 73,000 rooms, Paris has a far bigger hotel capacity than any other european city, Tiberi told a news conference at the Paris tourist office. Christian Mantei, director of the Paris Tourist Office, implied tourists were even making a point of staying away during the tournament, with a five percent drop in tourism expected compared to last year. Between 300,000 and 350,000 people are expected to flock to Paris alone for the World Cup. But Mantei said city officials predict an overall 20 percent increase in hotel prices in the first half of the year. Parisians are also being urged to give tourists a friendly welcome: Tiberi said 20,000 artisans and shopkeepers in the capital have signed a charter promising to do their best to help visitors. A tourist information campaign aimed at visiting soccer fans called welcome to Paris will begin June 3, and will be in six languages. A parade on June 9 ending at the central place de la concorde will celebrate the beginning of the World Cup. Other events include a concert by the three tenors - Placido Domingo, Jose Carreras and Luciano Pavarotti - next to the Eiffel tower on July 10. Soccer hooligans at this summer's World Cup will be watched closer than ever, French organizers say. Video cameras will record every movement, everywhere, in the stands during, before and after games. And the images can be used in court as evidence to convict hooligans, interior ministry official Yves Guillot said Tuesday. Guillot was showing off the high-tech security infrastructure at the newly-built stade de France which organizers hope will make the tournament as trouble-free as possible. Two command posts with large monitors and screens will be supervised by a group of police officials who in turn will talk by walkie-talkie with stewards at ground-level. An image can be printed and then handed over to French justice, Guillot said. It will then be up to them what happens. Police showed reels of tapes of a recent match at the stade de France, zooming in on troublemakers, transferring the images to a computer and printing them. The tapes are kept in an archive system and can be monitored long after the tournament ends, if necessary. A magistrate will be present at each match during the World Cup to ensure that violence is swiftly punished. Soccer officials are concerned that there will be insufficient segregation at many games as a result of a thriving black market of tickets. Special liaison officers will be traveling with national teams to look out for known hooligans.