The acronym "SIS" stands for "suspended imposition of sentence" and is usually accompanied by some form of probation as punishment when you are found guilty of a crime. By placing you on an SIS and ordering probation, the judge gives you the opportunity to avoid being sentenced altogether by successfully completing that probation term.
5 Strategies to Win your Probation Violation Hearing. When the State tries to revoke your probation and send you to jail, you have options. With the help of your criminal defense attorney, employing these strategies will give you the best chance to stay on probation and out of jail.