Section 49. Number of hours, alternative sentence of imprisonment and execution period

When imposing a community sentence, the court shall set
  1. a.
    a community sentence of between 30 and 420 hours,
  2. b.
    an alternative sentence of imprisonment, which shall correspond to the sentence of imprisonment that would have been imposed in the absence of a community sentence, and
  3. c.
    an execution period, which shall normally correspond to the alternative sentence of imprisonment. If the alternative sentence of imprisonment is shorter than 120 days, the court may nevertheless set an execution period of up to 120 days.
Section 31, third paragraph, second and third sentences, apply correspondingly to the setting of the execution period and the alternative sentence of imprisonment.