Explanation of Casey's release date

Orange County Corrections released the following memo Tuesday to explain the calculation of Casey Anthony's release date:

July 12, 2011
FROM: Michael Tidwell, Chief, Orange County CorrectionsInmate Casey Marie Anthony was found guilty of four (4) first degree misdemeanors on July 5, 2011. In anticipation of the announced sentencing on July 7, 2011, jail staff began to calculate possible outcomes in order to be responsive to the Court. One scenario that was evaluated was a sentence of four (4) consecutive one (1) year terms in the Orange County Jail.
Initial computations indicated, based on a sentence of four (4) one (1) year terms, inmate Anthony was eligible for 240 days of “statutory gain time”, awarded at the rate of 5 days per month for each of the 48 months. In addition, inmate Anthony was eligible for “constructive gain time”, as authorized by County Ordinance due to her Protective Custody status.Calculations yielded a projected release date of 8/25/11.On July 7, 2011, Orange County Corrections advised the Court of the projected release date of 8/25/11. Shortly thereafter, the Court issued an order awarding Ms. Anthony to 1043 days time served.In an effort to respond quickly to the Court, Corrections staff recomputed the projected release date. The amount of “statutory gain time” remained the same, but the amount of “constructive gain time” was reduced as the projected length of sentence was reduced. In the process of this rapid recalculation, inmate Anthony was inadvertently credited with “constructive gain time” for a complete month July‐August, rather than for a partial month.This oversight resulted in the Court being advised that the projected release date was 7/13/11.As with all time served cases, staff conducted a routine secondary review of the sentence computation and discovered the oversight. Once the oversight was corrected, it was determined inmate Anthony had been erroneously awarded four (4) additional days due to the change in length of sentence. This changed the projected release date from 7/13/11 to 7/17/11. This change was immediately reported to the Court.