 An appellant must demonstrate that either the sentence imposed was "demonstrably unfit" or the court "erred in principle", for example by placing undue emphasis on a particular sentence principle.Except for an appeal against a finding that the accused is a dangerous or long-term offender, the court upon allowing an appeal must then determine a fit sentence and may not remit the matter back to the court of first instance.The court of appeal considers the sentence anew and the sentence may be more or less severe than the sentence imposed, regardless of who appealed; this is referred to as the "Hill Principle"

There are some additional considerations taken into account at an appeal.