The identification of drunk driving can be based on the data of blowing, and there is no need for blood test, but a test data report needs to be issued and signed by the drunk driver for confirmation. If the drunk driver disagrees, the traffic police can take a blood test and take the blood test conclusion as the punishment basis. It can be used as a punishment basis for drunk driving. The data from the air test can be used as the basis for drunk driving, but a report form needs to be printed and signed by the parties concerned for confirmation. If the visa is refused, an explanation can be given. Above 80 mg/100 ml, blood test must be taken, and the test report is used as the basis for dealing with drunk driving.

The blood test results of drunk driving do not need the signature of the parties. The traffic police taking people to the hospital is just a simple blood test, and it doesn't need the signature of family members. If the test result is drunk driving or drunk driving, it will be handled according to the result.