Swiss Civil Code

¹ If dam­age is caused by a mem­ber of the house­hold who is a minor, suf­fers from a men­tal dis­ab­il­ity, is sub­ject to a gen­er­al deputy­ship, or is men­tally ill, the head of the fam­ily is li­able un­less he can show that his su­per­vi­sion of the house­hold was as di­li­gent as would nor­mally be ex­pec­ted in the cir­cum­stances pre­vail­ing.⁴⁷⁰

² The head of the fam­ily is ob­liged to en­sure that the con­di­tion of a house­hold mem­ber who suf­fers from a men­tal dis­ab­il­ity or a men­tal ill­ness does not res­ult in risk or dam­age to him­self or to oth­ers.⁴⁷¹

³ Where ne­ces­sary, the head of the fam­ily must no­ti­fy the com­pet­ent au­thor­ity with a view to hav­ing the re­quis­ite pre­cau­tion­ary meas­ures put in place.