the Inspector General concluded "Numerous studies show that despite an annual cost of $36 million, the Department of Corrections and Rehabilitation’s in-prison substance abuse treatment programs have little or no impact on recidivism." The report specifically mentioned the "New Choice female felon program" at CCWF, for which "12-month recidivism rates... were lower for non-participants than for participants." Employees As of 2007, of the prison guards, 31% were women. 19% of sergeants were women, and less than 1% of lieutenants are women. Notable inmates Death row After Governor Pete Wilson decreed in December 1991 that CCWF shall hold all female death row inmates in California, Maureen McDermott became the first death row inmate at CCWF. She was the first woman sentenced to death in a period of several decades, and at one period, she was the only person in the unit. Initially a set of nine cells in the 504 building, a two story building for difficult to manage and maximum security prisoners, served as the women's death row. The death row inmates' names (with years of sentencing) are: Rosie Alfaro (sentenced 1992) Socorro Caro (2002) Celeste Simone Carrington (1994) Cynthia Coffman (1989) Kerry Lyn Dalton (1995) Susan Eubanks (1999) Veronica Gonzales (1998) Cherie Lash-Rhoades (2018) Belinda Magana (2015) Maureen McDermott (1990) Michelle Lyn Michaud (2002) Valerie Dee Martin (2010) Tanya Nelson (2010) Angelina Rodriguez (2004) Brooke Rottiers (2010) Mary Ellen Samuels (1994) Cathy Lynn Sarinana (2009) Janeen Marie Snyder (2006) Manling Tsang Williams () (2011) Jessica Marie Hann (2014) Current and former inmates Jeena Han, was sentenced to 26 years to life in prison for attempted murder and false imprisonment of her twin sister Sunny Han to assume her identity and leave the country. She was released on parole in May 2018. Nikki Charm, porn star, for auto theft and burglary. Sentenced for five years in 2002. Helen L. Golay, whose crimes committed in 1999 and 2005 in Los Angeles County became known as Black Widow murders. She is serving life in prison without possibility of parole. Jennifer Lynn Henderson, aka Jennifer DeLeon, convicted in 2006, serving two consecutive sentences of life without parole for the Murder of Thomas and Jackie Hawks, a retired couple killed as part of a conspiracy to steal their yacht and bank accounts. Marjorie Knoller was released from CCWF and sent to Ventura County on parole in January 2004. She had reportedly just served "about