Judge Mark E. Singerton

Judge Mark E. Singerton was appointed to the Riverside Superior Court by Governor Gavin Newsom in 2021, bringing with him two decades of prosecutorial experience at the Riverside County District Attorney's Office. He served as a Deputy District Attorney beginning in 2001 and was elevated to Managing-Supervising Deputy District Attorney in 2008, a role he held for approximately 13 years before taking the bench. His entire pre-bench career was spent in Riverside County prosecution, giving him deep familiarity with local law enforcement, the Riverside County court system, and the types of cases that flow through it. Publicly available coverage identifies Judge Singerton as currently assigned to juvenile court matters, where a June 2024 Daily Journal article specifically highlighted his personal investment in the rehabilitation of troubled minors. This coverage reflects a judicial orientation in juvenile proceedings that prioritizes engagement with individual circumstances and outcomes for young offenders. His prosecutorial background in criminal law, combined with his documented focus on juvenile rehabilitation, defines the known contours of his judicial identity. Because no analyzed rulings, attorney observations, or ingested content are available, the intelligence picture for Judge Singerton is limited to his career trajectory and publicly reported coverage. Attorneys should treat the guidance below as grounded in structural career data rather than observed courtroom behavior, and should supplement this profile with direct local practitioner knowledge before appearing before him.

Attorneys appearing before Judge Singerton in juvenile matters should be prepared to engage substantively with rehabilitation-focused arguments. The June 2024 Daily Journal coverage specifically frames his approach around personal investment in the lives of troubled minors, which signals that arguments centered on a minor's individual circumstances, support systems, and prospects for change are consistent with his documented judicial orientation. Generic or purely punitive framing in juvenile proceedings is less likely to resonate given the available record. Given Judge Singerton's 20-year career as a prosecutor in Riverside County, attorneys on the defense side should anticipate a judge with sophisticated knowledge of prosecutorial methods, evidentiary standards in criminal matters, and law enforcement practices. Arguments that rely on procedural technicalities without substantive merit, or that mischaracterize prosecutorial conduct, face scrutiny from a judge who has direct professional experience in that role. Prosecutors appearing before him should not assume automatic deference — his elevation to the bench and documented juvenile court work suggest he evaluates cases on their merits. Because no ruling data or attorney observations are available, attorneys should consult Riverside County practitioners who have appeared before Judge Singerton for current courtroom-specific intelligence. Local bar association resources and colleagues with recent Riverside Superior Court experience are the most reliable supplement to this profile.

• critical

  Consult Riverside County Local Practitioners

  No ruling data or courtroom observations exist in this profile. Before any appearance, consult attorneys who have recently appeared before Judge Singerton in Riverside Superior Court to obtain current, firsthand intelligence on his courtroom practices.

• critical

  Prepare Individualized Rehabilitation Evidence for Juvenile Matters

  Given the documented emphasis on personal investment in juvenile offenders, attorneys in juvenile proceedings should prepare detailed records of the minor's background, family support, educational status, and rehabilitation prospects rather than relying on generic mitigation.

• important

  Review Prosecutorial Procedure and Evidentiary Standards

  Judge Singerton's 20-year prosecutorial career means he has direct expertise in criminal procedure and evidence. Attorneys in criminal matters should ensure their evidentiary arguments are technically precise and well-grounded.

• important

  Confirm Current Court Assignment

  Available data documents Judge Singerton in juvenile court as of 2024. Confirm his current assignment and department through the Riverside Superior Court's official calendar before preparing for any appearance, as assignments can change.

• important

  Review Riverside County Juvenile Court Local Rules

  If appearing in juvenile court before Judge Singerton, review all applicable Riverside County Superior Court local rules governing juvenile proceedings to ensure full procedural compliance.

• ›Demonstrate genuine engagement with the individual circumstances of your client, particularly in juvenile matters — the available record documents this as a judicial priority for Judge Singerton.
• ›Avoid mischaracterizing prosecutorial conduct or law enforcement practices; Judge Singerton spent 20 years as a Riverside County prosecutor and has direct professional knowledge of those practices.
• ›Arrive prepared with substantive arguments grounded in the facts of your specific case; his documented personal investment in cases suggests he engages with individual details rather than generic presentations.
• ›Familiarize yourself with Riverside County Superior Court local rules and procedures; Judge Singerton's career was entirely within this court system and he has deep institutional familiarity with its standards.