In theory, the possibility of parole or probation is an element of motivating rehabilitation.
In reality there is no correlation between enforcement of law and the granting of probation or parole. In reality probation is largely granted as a means of moderating the court calendar, and parole is granted on almost an entirely arbitrary basis, but with some attention to prison/facility census.
Criminal
The field of criminal justice is wide and varied. Criminal justice is the system of law enforcement, attorneys, and the courts, the prison system and the parole and probation system that are directly involved in the investigation, arrest, trial, and sentencing, imprisonment and supervision of criminal defendants.
There are a lot of different criminal justice jobs which may require some college education or on-the-job training. Some common jobs in this field are law enforcement officers, probation officers and detectives.
A rather loose term that encompasses all the agencies and aspects of he administration of criminal justice. Law enforcement agencies - proscecutors office - court system - jail and prison systems - parole and probation administrations - etc - etc.
People with nonviolent criminal pasts may be eligible for TAsC probation.
probation
Violation of probation
Previous incarceration
Law-enforcement, inter alia, is PART of the criminal justice system.
statutory law, law enforcement, criminal courts, and punishment
In simple terms, no. In many cases, individuals with a criminal background cannot become probation officers or even peace officers. Some States will allow a person to qualify IF the crime was a misdemeanor of a non-violent nature. However, you cannot be on active probation at the time you apply for the position. You would need to check with your State and/or County Personnel Offices to find out how a person can qualify for a position in corrections and law enforcement.
I studied criminal law to become a law enforcement officer.