Barcelona, like other big cities, has a large number of criminals who mainly prey on tourists. They usually work in groups whereby the victim is distracted by one party while being robbed by another party. Many pickpockets are known to the police and some have been arrested hundreds of times only to be released once the police have filled in a report. Stealing money or goods worth less than about $360 without the use or threat of violence is classified as hurto or petty theft under Spanish law and is treated as a minor misdemeanor no matter how many times it is repeated. The problem is compounded by the few policemen "walking the beat" in Barcelona, even though the city has one of the highest police to citizen ratios in Europe. Areas where one should be particularly careful are the Barri Gòtic ,El Raval, and the Rambla . Internet cafes are a popular target in general. It is not uncommon for thieves to cut bags and backpack straps. Mobile phone theft is also a popular petty theft crime when tourists leave their phones on tabletops.