1"The traffic safety law of the people's Republic of China "seventy-second road second:"Traffic police should be inspection, examination, the scene of the traffic accident to collect evidence; the need for collection of evidence, to detain the vehicle accident, but should be properly kept, for verification."That is to say,Traffic police because of the need to collect evidence, to detain the vehicle accident, but this does not involve the deduction of time.

        2 "traffic accident management procedures"Article thirty-ninth: "the traffic administrative department of the public security organ to the parties physiological, mental health, human body injury, body, vehicle and driving speed, trace, articles and site inspection, road conditions were identified, should be in the investigation at the scene identification institution appointed date within five days or entrust the professional and technical personnel, qualified for inspection, identification. Inspection, appraisal shall be completed within twenty days; needs to be extended, with the approval of the municipal traffic management departments of public security organs districts and may be extended for ten days. Inspection, identification of cycles over time, must be approved by the traffic administrative department of the public security organ of the people's government at the provincial level."That is to say, according to the article, the traffic control department of the public security organ is the longest can detain the vehicle accident 35 days.

   Therefore, according to the provisions of article three, the traffic police because of the need to collect evidence, to detain the vehicle accident,5Shall entrust the relevant agencies to identify days, authentication institution shall, in20Complete identification of days, approval may also be extended10Japan, which is30Day, identification is completed, should be in the5Days returned to owners, so, if no other special circumstances, the long time the traffic police team may detain the vehicle accident shall be40Day.

   However, the need to pay attention to is: 1, inspection, identification can not be completed in 30 days, approved by the provincial public security organ, but also can be extended. Because of not clear and specific time, general understanding for 10 days; 2, public authority should be in receipt of the inspection after the inspection, a copy of identification of the conclusions to the parties within 2 days, otherwise, can put forward to re inspection, identification of the application within 3 days, the public security organs such as the approval of re identification, then buckle car time also calculate an inspection, appraisal period. So, this is a cycle of 45 days, in the absence of the extension was approved the provincial public security organ case, traffic police team may detain the vehicle accident time is 85 days, such as the approval and the provincial public security organ 10 days period, then the traffic police team may detain the vehicle accident of the total number of days for 95 days.