Questione giuridica chiave
Whether the cantonal court arbitrarily found that the defendant had already begun the attempt to use the pyrotechnic device for pleasure purposes.
Decisione estratta
No arbitrariness was shown; the finding that the decisive step occurred at the control zone was sustainable.
Motivazione estratta
The concealment was only preparation. The attempt began when he left the train and entered the secured access zone; from then on only external intervention prevented completion.