Notwithstanding any provision of law to the contrary, a court may modify, defer, suspend or reduce a minimum or mandatory sentence of 1 year or less, or a portion thereof, where the court finds by clear and convincing evidence, or by stipulation of the State, that the person to be sentenced suffers from a serious physical illness, injury or infirmity with continuing treatment needs which make incarceration inappropriate and that such person does not constitute a substantial risk to the community.