Questione giuridica chiave
Whether the federal appeal met the reasoning requirements under the BGG.
Decisione estratta
No. The submission did not show, with reference to the challenged decision, which rights were violated and did not substantiate the objections as required.
Motivazione estratta
Under Art. 42(2) and Art. 106(2) in conjunction with Art. 117 BGG, the appellant must specifically address the grounds of the cantonal decision. The filing of 15 May 2007 failed to do so, so the appeal could not be examined.