Swiss Civil Code

¹ Re­cog­ni­tion may be chal­lenged be­fore the courts by any in­ter­ested party, namely the moth­er, the child or, after its death, its is­sue, and by the com­mune of ori­gin or dom­i­cile of the re­cog­nising per­son.

² The re­cog­nising per­son is en­titled to file a chal­lenge only if he or she re­cog­nised the child un­der threat of im­min­ent and sub­stan­tial risk to his or her own life, limb, repu­ta­tion or prop­erty or to those of a per­son close to him or her, or in the er­ro­neous be­lief that he was the fath­er.

³ The chal­lenge is dir­ec­ted against the re­cog­nising per­son and the child, in­so­far as they them­selves are not the chal­len­ging per­sons.