Tourists unhappy with their guides, who took them to the shops instead of the historical sites of Macau, ended up being subdued by police with riot gear. More than 40 police dealt with the dispute after two officers failed to calm the 100 or more angry tourists on Tuesday. TV showed police swinging truncheons to beat people back. "The situation was out of control so police used appropriate force," said spokesman Pun Siu-tong. Five tourists were charged with disturbance and four officers were injured. Macau not only has World Heritage sites but is the only place in China where gambling is legal.