Good conduct time can be forfeited if a prisoner is determined to have committed disciplinary infractions and/or crimes while incarcerated.
Prisoners known to be uncontrollably violent (i.e., who will immediately attempt to injure or kill any human being within reach if the opportunity arises) cannot share cells or other prison facilities and must be escorted in restraints by multiple correctional officers.
Persistent controversy over calculation of good conduct time in the United States was laid to rest in the U.S. Supreme Court decision of Barber v. Thomas (2010).
[3] The First Step Act, which provides for time credits for successful participation in recidivism reduction programs, also changes how the 54 days are calculated, applying a retroactive fix that could result in the release of 4,000 prisoners.
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