Originally Posted by JimGunther
I see the question has been altered so that is now more complete. I'm afraid the notion that a person can be kept indefinitely on a probation violation is incorrect, the Sixth Amendment to the U.S. Constitution requires that a "speedy trail" be provided to anyone accused of a crime. In my state this was held to be 180 days, I was a parole and probation officer for 7 years and one of my offenders, Kevin Lewis Cox, committed 21 new offenses, including robbery, assault and home invasion, but was released because the Baltimore State's Attorney's Office didn't get the case together in time. This was all over the papers.
By the way, a judge does not postpone a case except in rare circumstances, one side or the other must request a postponement. A person's case is placed on the court docket shortly after they are charged with a crime and people who are detained on a new charge are commonly offered a bond review hearing within a few days.