With the exception of traffic police in some local departments, all police officers carry small firearms (notably the Walther PPQ pistol, Smith & Wesson M&P compact or Glock sidearms for detectives) and batons. A criticism that has emerged in recent years is that police officers generally do not carry any nonlethal weapons aside from batons such as tasers or pepper spray, limiting their options when dealing with violent criminals. Police in Taiwan have sometimes been known to fire warning shots or at the legs of fleeing suspects, though this practice has reportedly decreased in recent years.