What kind of dog is the general blood search dog?

After the first program of "Challenge Impossible" was broadcast in the second season, the blood dog "Grassroots" quickly became an "internet celebrity". We know that the biggest feature of PCR is that it can greatly increase the amount of DNA. Therefore, whether it is paleontological fossils, the remains of historical figures, or the hair, skin or blood left by a murderer in a murder case decades ago, as long as a little DNA can be isolated, it can be amplified and compared by PCR, which is also the power of "trace evidence". This springer dog with a double ponytail successfully completed the special challenge set in Challenge Impossible, and sniffed out the target blood sample after a drop of blood was diluted by 2,000 trillion times. Blood dog is a kind of police dog. 20 1 1 Xiamen municipal public security bureau began to study dogs with dogs. After more than half a year's experiment and training, the "application technology of blood-searching dog training" was developed, which not only created the "patent" of China police dog technology in this field, but also surpassed the police dog blood-searching technology in other countries in the world.