Article R2333-120-55 of the French General Code of Local Authorities
A member of the panel who assumes that he or she is the cause of the challenge or who conscientiously considers that he or she should abstain shall be replaced by another member designated by the chairman of the committee. A party who wishes to challenge a member of a panel must, on pain of inadmissibility, do so by means of a special document submitted to the committee as soon…