In a recent case, the Massachusetts Supreme Judicial Court decided that GPS monitoring or similar devices may not be added to a probationer as an additional condition of probation without a violation of probation where there is no material change to the defendant’s circumstances.
In the Massachusetts court, probation is a legal resolution of a case that allows the defendant to be released, without incarceration, on the condition that he complies with certain conditions imposed by the sentencing judge. If, however, the defendant violates any of those conditions of probation, a judge may then revoke his probation and commit that person for up to the maximum sentence on the charge for which he was placed on probation.
Where, however, the defendant on probation has complied with his conditions of probation, a judge is then limited with modifying the terms and conditions of the persons probation [without a violation].