Do I need to sign the blood test results of 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. The Threshold and Detection of Alcohol Content in Blood and Exhaled Gas of Vehicle Drivers stipulates that drivers whose blood alcohol content reaches 20 mg and less than 80 mg within 100 ml are deemed as drunk driving, and those who exceed 80 mg are deemed as drunk driving. The only evidence of drunk driving is the result of blowing test or blood test. The Threshold and Detection of Alcohol Content in Blood and Exhaled Gas of Vehicle Drivers stipulates that drivers whose blood alcohol content reaches 20 mg and less than 80 mg within 100 ml are deemed as drunk driving, and those who exceed 80 mg are deemed as drunk driving. Article 8 Breath alcohol test If a traffic policeman discovers that a motor vehicle driver is suspected of drunk driving in law enforcement on road duty, he shall conduct a breath alcohol test. The breath alcohol test shall print the written test results, which shall be signed by the parties concerned and signed or sealed by the traffic police. If the parties have objections to the inspection results or refuse to sign them, the traffic police shall indicate the written inspection results. Article 9 Conditions for Blood Sampling If a party is suspected of driving a motor vehicle after drinking, it shall collect blood samples to test the alcohol content in the body: (1) The test result of breath alcohol meets or exceeds the drunk driving standard; (2) Objecting to the breath alcohol test results; (3) refusing to cooperate with breath alcohol test and other methods; (4) A traffic accident has occurred. (1) At least two traffic policemen shall take the client to a medical institution or a qualified inspection and appraisal institution or the above-mentioned institutions to send personnel to draw blood, and supervise the whole process of blood drawing. (2) Blood sampling shall be carried out by professionals as required, and the traffic police shall inform the blood sampling personnel to take two blood samples, and alcohol drugs shall not be used for skin disinfection. Blood samples should be packed in clean and dry containers with anticoagulant added, and the name and time of blood drawing should be indicated. They should be sealed in paper bags, one for filing and one for inspection. The sealed bag shall be marked with the name of the person to be extracted, the time of extraction and the purpose of blood sample, and shall be signed by the person to be extracted, and signed or sealed by the traffic police and blood collection personnel. If the person who has been drawn blood or the person who has been drawn blood refuses to sign or seal, the traffic police shall indicate it. (3) Fill in the Registration Form for Taking Blood Samples by Parties, indicating the reason, time and place of taking blood and the name of the person being taken, which shall be signed or sealed by the traffic police. (four) blood samples should be submitted in time, and if they cannot be submitted in time, they should be kept at low temperature. If you lose control after drinking or refuse to cooperate with blood drawing, you can use binding belts or warning ropes to bind police equipment. Therefore, as a driver, once you drive a vehicle while traveling, you should always be alert to yourself, don't drink alcohol, and you can't drive a vehicle after drinking. Drunk driving is not only irresponsible to oneself, but also irresponsible to others. At the same time, once you are inspected by the traffic police after drunk driving, you should cooperate with the inspection of the traffic police and you must not refuse the inspection.