The People v. Dunn CA1/3

DISCUSSION

A defendant sentenced to prison is entitled to have all presentencing days spent in custody credited against the term of imprisonment. (§ 2900.5, subd. (a).) The defendant also may be awarded additional presentence conduct credits for satisfactorily performing labor assignments (§ 4019, subd. (b)), and for complying with “reasonable rules and regulations” (§ 4019, subd. (c)). Section 4019 has been amended several times in recent years. Before January 25, 2010, defendants were entitled to two days of conduct credit for every four days of actual time served in presentence custody. (Former § 4019, subd. (f), as amended by Stats. 1982, ch. 1234, § 7, pp. 4553-4554.) Effective January 25, 2010, the Legislature amended section 4019 to accelerate the accrual of presentence conduct credit such that certain defendants earned one-for-one conduct credits, or two days of conduct credit for every two days in custody.2 (Stats. 2009, 3d Ex. Sess. 2009–2010, ch. 28, § 50 [enacting Sen. Bill No. 18XXX].) Effective September 28, 2010, the Legislature again amended section 4019, restoring the less generous one-for-two presentence conduct credit calculation that had been in effect before…