The actor and musician has also been ordered to spend six months at a residential drug treatment programme upon his release.

A judge made the sentencing decision during a court progress report hearing relating to a probation violation in Los Angeles on Wednesday (08Jun16).

When prosecutors told the judge Short had been violating his probation from a 2014 assault case by continuing to smoke marijuana - and had yet to begin the community service handed to him - the lawmaker decided enough was a enough, and sentenced the actor to 30 days in jail, according to TMZ.

Short's lawyer, Ludlow B. Creary II, attempted to seek leniency by telling the judge Short's sister died of heart failure last week (ends03Jun16), but the sentence stood.

The actor has already served six days in custody and he was removed from court and taken back to jail for a remaining 24.

The former Scandal star was sentenced to three years probation in September (15) after pleading no contest to a felony count of assault likely to cause bodily injury following a bloody fight in March, 2014, which left the victim unconscious with a broken nose.

Short was also sentenced to 60 days of community labour, 26 anger management classes, and told he must pay thousands to his victim, Fenton Hyche III.

Short has completed his anger management course.

Back in 2014, Short told Access Hollywood that his use of narcotics and drinking had contributed to his departure from Scandal. He left the show after being charged in the felony assault case and a separate case of misdemeanour spousal battery in the summer of 2014 following a fight with his then-estranged wife.