In most situations the judge applies the custom to supplement the positive law or to testify some facts or to clarify some mistiness of the law or as a fact of the benefit-weight .

法官适用习惯，一般情况下是对正式法律起某种补充作用，或者是 证明待 证 事实、或者是解释法律的模糊之处、或者是填补制定法的漏洞。