Questione giuridica chiave
Whether the challenged tax assessment was void due to multiple substantive and procedural defects.
Decisione estratta
Nullity may arise when several substantive and procedural defects combine, especially where it is doubtful that the authority acted in good faith.
Motivazione estratta
The court considered the overall defect pattern, not each flaw in isolation, and held that the combination of errors could justify nullity.