Sheriff Pierini, left, Deputy Sal DeRosa, center, and Undersheriff Paul Howell are seen after DeRosa was sworn in on Monday.
Deputy DeRosa was raised in Southern California and following graduation from high school, he enlisted in the Marines where he served four years as a Rifleman and participated in Operation Enduring Freedom in Afghanistan. He was honorably discharged as a Corporal.
Following his military service he attended Santa Ana College and obtained an Associate Degree in Liberal Arts and a Certificate of Achievement in Fire Technology Prevention.
Deputy DeRosa will be assigned to the Jail Division under Captain Jim Halsey.