Where a court imposes an effective sentence of imprisonment of less than 24 months (particularly 12 months or less) on a first offender, it must, as a rule, consider community service as a sentencing option first and provide sound reasons if community service is not imposed. Failure to consider community service and to give adequate weight to mitigating factors such as a guilty plea, youth, and first offender status constitutes an error in the exercise of sentencing discretion. When a judicial officer accepts factors in mitigation, he must clearly specify the amount by which the sentence has been reduced on account of each factor, rather than merely paying lip-service to those factors.