Questão jurídica principal
From which date must the hypothetical income be excluded from the supplementary benefits calculation?
Decisão extraída
The authority could not be compelled to reconsid er its final decision on a different ground; exclusion of the hypothetical income was only to be recalculated from 1 January 2009.
Fundamentação extraída
The cantonal court extended the scope of reconsidération beyond the ground actually examined by the authority. In the absence of a specific legal basis, a judge may not impose a reconsidération on another ground or prescribe its modalities.