探秘世界各国警犬（Explore the world of dogs）.docVIP

探秘世界各国警犬（Explore the world of dogs） Quest world dog 2009-11-10 \ \ Liu Ping French police and police dogs A dog is trained and used by police agencies working dogs, is an important part of police combat equipment. At present, widely used in the world of the explosive machine, such as metal detectors, low dose X optical imaging instrument, using explosives vapor reaction enzyme detector, analysis of explosive composition chromatograph, not only expensive and the accuracy rate is not high, there are many defects. For example, when checking cars, metal detectors react to metal objects, while explosives detectors do not respond to exhaust fumes. The police dog in the search explosion can make up for the lack of instrument search explosion. To this day, there is no scientific instrument or other technological means that can replace the unique role of police dogs. Internationally, the true scientific police dogs began in 1890, when Belgian police first used dog training for criminal investigation. In 1896, police in the German Empire began to use dogs. In todays world, as long as there are police states, there are police dogs. French police and police dogs The unique role of a police dog The dog has a nervous system, highly sensitive extraordinary sense of smell and hearing, sharp night vision function, it smells resolution higher than people millions of times, there are 220 million olfactory cells in the nose can smell them, 200 kinds of odor. Listening is 16 times as good as human beings, as well as good obedience, tenacious patience, strong gallop, fierce biting ability and great loyalty to the host. It takes part in police activities such as identification, tracking, searching, searching, searching, guarding, rescuing and so on in its unique way. In many areas where human beings are unable to use it and technology does not work, police dogs play an irreplaceable role in protecting the safety of citizens. The dogs in the explosive is more clap. In the fight against cri