San Francisco: Crime
As with any major city you need to be aware of your surroundings when in San Francisco. There are some rough areas in this city. However, as a tourist you are unlikely to visit any of these. Virtually anywhere can be visited during the daytime, but you may want to avoid the seedier areas of town after night fall (when muggings are more likely). You generally need to be aware of your wallet and handbag as there are pick-pockets in the city. San Francisco has a fair share of homeless people so there will be beggars.