Questão jurídica principal
Whether the employer showed a violation of the employment-law inquisitorial principle by the cantonal court
Decisão extraída
The complaint failed: even under Art. 343(4) OR, parties must substantiate their allegations and identify evidence; an already represented party must be especially clear. The cantonal court did not breach its duty by not prompting further substantiation.
Fundamentação extraída
The inquisitorial principle does not replace party responsibility for presenting the relevant facts. The employer had already been warned at first instance about insufficient substantiation and missing evidence offers, so it was aware of the defect.