Advisory Board - Los Angeles Sheriff's Department

Photo of Sandra Enslow


Sandra R. Enslow is the Graphics Coordinator and a Forensic Artist for the the Los Angeles County Sheriff’s Department.  She is a 20-year veteran of LASD and has sketched well over a thousand composites and testified hundreds of times. Her efforts have contributed to the convictions of hundreds of felons. She has her B.A. in Commercial Illustration and Design from California State University at Los Angeles, with forensic training from the Los Angeles County Sheriff’s Department, Federal Bureau of Investigation, and Northwestern University.  She lectures at the LASD Homicide School and the LASD Detective College.  Ms. Enslow co-manages the LinkedIn Forensic Artist’s Discussion Group, which has a membership of over 300 national and international professional Forensic Artists.  She is an associate member of the American Academy of Forensic Sciences.  She is a member of the California Forensic Science Institute Advisory Board.  The LASD is the nation’s largest sheriff’s department, second largest policing agency, and in addition to dozens of patrol stations and the country’s largest court security responsibilities, operates the nation’s largest jail system.

Photo of Dean M. Gialamas













Dean M. Gialamas, Assistant Division Director, Los Angeles County Sheriff’s Department, Technical Services Division  

Dean Gialamas is the Assistant Division Director for the Los Angeles County Sheriff Department’s Technical Services Division.  In his role, he assists in leading and managing the Department's technology services, which includes communications, fleet, information technology, records, biometric identification, forensic sciences and crime analysis/intelligence. With over 1,100 sworn and technical personnel and a budget over $216 million, the Division supports the entire Department in the application of technology services to public safety.  As a former crime lab director, he is an active member of several professional organizations, including a past President of ASCLD, and has been appointed to several state and federal task forces and workgroups regarding forensic science issues, including the National Commission on Forensic Science.  

Photo of Wesley P. Grose


Wesley P. Grose, Assistant Director, Los Angeles Sheriff's Department, Scientific Services Bureau

Mr. Grose has been an Assistant Director for the Los Angeles Sheriff’s Department since 2006, managing a variety of areas during that time which included the general operations of the lab (budget and personnel), Questioned Documents, Digital Imaging, Toxicology, Controlled Substances, and Blood Alcohol units.  From 2010 to 2012 he served on the White House Interagency Working Group for Standards, Practices, and Protocols which was tasked with addressing the main issues identified in the 2009 National Academy of Sciences report on Forensic Sciences.  He recently completed a three-year term on the Board of Directors of the California Association of Crime Laboratory Directors where he served as President, and he is currently the President of the Southwestern Association of Forensic Document Examiners. 

Photo of Clay Porlier




Captain Clay Porlier is a 30-year veteran of the Los Angeles County Sheriff's Department. In 1983, he joined the ranks of the Los Angeles County Sheriff's Department as a Deputy Sheriff. His assignments included Pitchess Detention Center (PDC) - East Facility, Lynwood Station, and Santa Clarita Valley Station.

In 1994, he was promoted to Sergeant. He was assigned to North County Correctional Facility, followed by Lost Hills Station, Santa Clarita Valley Station, and Internal Affairs Bureau. Following his promotion to Lieutenant in 2003, he was assigned to North County Correctional Facility, Palmdale Station, Internal Affairs Bureau, PDC-North Facility, Transit Services Bureau-North, and PDC-East Facility.

In April of 2012, he was promoted to the rank of Captain by Sheriff Lee Baca, and assumed command of PDC-East Facility. Following the closure of PDC-East Facility, Captain Porlier moved to Twin Towers Correctional Facility, followed by Custody Training and Standards Bureau, and finally his present assignment at Scientific Services Bureau. 

In 1979, Captain Porlier received his Bachelor of Science Degree in Business Administration/Marketing from California State University, Northridge. In 2006, he returned to California State University, Northridge, and earned a Master's Degree in Public Administration. Captain Porlier is a retired Major from the California Air National Guard, having served 22 years as a navigator aboard C-130E aircrafts. In his spare time, Captain Porlier enjoys cycling, hunting, traveling, cooking and all aspects of wine. 


Photo of Steve Renteria



Steven R. Renteria

BS in Medical Technology from California State University Los Angeles 1983
Graduate courses complete in Forensic Science at CSLA.

Hired at Sheriff's in 1983 assigned to Forensic Biology
Senior Criminalist, 
    DNA Technical Leader
    Combined DNA Index System (CODIS) Administrator
    Cold Hit Outcome Project (CHOP) Coordinator for LA Co. Sheriff’s Dept. 
Member of:
    California Association of Criminalists
    American Academy of Forensic Sciences    
    American Board of Criminalistics-     

           Diplomate  General Criminalistics
           Fellow, Molecular Biology

Mr. Renteria started working for the Los Angeles County Sheriff's in 1983 and is assigned to Forensic Biology section.  He performs DNA case work and is both the DNA Technical Leader and Combined DNA Index System (CODIS) Administrator for the section.  Mr. Renteria is also the Cold Hit Outcome Project (CHOP) coordinator for the LA County Sheriff’s Department.  

Other affiliations:
American Board of Criminalistics (ABC) Credentials Committee Chairman 
National DNA Index System (NDIS) Audit Review Panel Member 
National Forensic Science Technology Center (NFSTC) DNA Technical Auditor 
American Society of Crime Laboratory Directors/Laboratory Accreditation Board (ASCLD/LAB) 
     International Assessor, (2010 – present)


Photo of Robert Taylor


Robert W. Taylor (Bob) has been with the Los Angeles County Sheriff’s Department’s Scientific Services Bureau since 1989.  Since 2006, he has been an Assistant Director of the laboratory and has managed the Biology, Trace, Firearms, and CSI sections.  Bob has a degree in Biological Sciences from The Ohio State University and a Post-baccalaureate Degree in Medical Technology from The Ohio State University School of Allied Medicine.  He has authored or co-authored several peered review forensic papers and also a chapter in a book on the use of robotics in toxicology.  He has served on numerous committees and panels, and has been a resource for laboratories that have been tasked with eliminating their sexual assault kit backlogs.  He is on the steering committee for the Sexual Assault Forensic Evidence Reporting (SAFER) Act.  Bob is a Certified Technical Assessor for the American Society of Crime laboratory Directors/Laboratory Accreditation Board (ASCLD/LAB) International program and has been involved in accreditations of forensic laboratories, both nationally and internationally.