If the checks are carried out following a traffic accident that occurred under the conditions set out in Article L. 3354-1, the officer or agent of the judicial police shall send :
1° The first blood sample taken, together with four copies of forms A and B, to the laboratory of a health establishment or to an expert biologist on the list provided for in Article R. 3354-20;
2° The second sample, together with one copy of sheets A and B, to another expert biologist on the same list who may be responsible for carrying out the control analysis.
The laboratory or expert biologist who carried out the analysis records the results on form C and sends a copy of forms A, B and C directly, in a sealed envelope and with a confidential stamp, to the person concerned, the Prefect and the Public Prosecutor at the scene of the accident. Form C is given to the criminal investigation officer.