The main difference between the two is that false arrest requires an arrest, but, false imprisonment only requires unlawful detention. A detainment is a less severe legal procedure compared to an arrest.The Inmate Records Coordinator (IRC) at each DOCCS correctional facility is responsible for sentence time calculations. Unlawful imprisonment typically occurs when one person prevents another person from leaving a vehicle, room, building, or other some other area. In New York, most detained individuals will follow the exact same process after being arrested, regardless of what type of crime they were arrested for. The determination of bail is one of the most important aspects of arraignment. They have 72 hours to detain someone and then charges must be brought or they must be released. The vast majority of defendants will be released on the own recognizance, aka, ROR'd, or without monetary conditions. In a great majority of cases, an arrest is done without a warrant, based on probable cause. This chart describes certain prison sentences authorized for those convicted of certain crimes in New York state.