Weighing a Riverside County Sheriff misconduct lawsuit?

A Riverside County Sheriff misconduct lawsuit usually starts with something that should not have happened: excessive force during an arrest, a violent cell extraction, a detention without good reason, or a death after contact with deputies. If that happened to you or someone you love, we are sorry. You may also be hearing about the Sheriff's Office in the news and wondering what any of it means for your situation.

This guide covers the Riverside County Sheriff's Office specifically: its size, the state Attorney General's civil-rights investigation, the 2026 grand jury report on oversight, cases families and individuals have brought, how a complaint differs from a claim, and exactly where a claim against the County goes. Most state-law claims against Riverside County must be filed within six months.

The Riverside County Sheriff's Office at a glance

Agency	Riverside County Sheriff's Office (RCSO), which has also served as the county coroner
Staff	"Over 4,000" employees covering "over 7,300 square miles" (RCSO)
Jails	Robert Presley Detention Center (Riverside), Cois M. Byrd Detention Center (Murrieta), Larry D. Smith Correctional Facility (Banning), John J. Benoit Detention Center (Indio), Blythe Jail
State investigation	Attorney General pattern-or-practice civil-rights investigation, opened February 23, 2023; no final public report as of April 2026
Civilian oversight	None under AB 1185, according to the 2025–26 Civil Grand Jury
Claims go to	Clerk of the Board of Supervisors, Claims Division, P.O. Box 1147, Riverside 92502-1147

The Sheriff's Office describes itself as having a staff of over 4,000 covering more than 7,300 square miles. Deputies patrol unincorporated communities and contract cities, run the county jails, and also handle death investigations as the coroner. That last role is changing, as explained below.

The Attorney General's civil-rights investigation

On February 23, 2023, Attorney General Rob Bonta announced a civil investigation into whether the Riverside County Sheriff's Office has engaged in a pattern or practice of unconstitutional policing. The announcement listed three areas: conditions of confinement in the jails, excessive force, and other alleged misconduct. It was opened under Civil Code § 52.3, which lets the Attorney General investigate law enforcement agencies and seek to compel changes.

The Attorney General said no conclusions had been reached about specific complaints. According to the 2025–26 Riverside County Civil Grand Jury, the investigation was still active in late April 2026, with no final public report or updates. The investigation does not award money to individuals. Only your own claim and lawsuit can do that.

What the 2026 grand jury found about oversight

In a report titled After a Decade of Record Deaths in County Jails, the Community Deserves Transparency through Oversight, dated May 7, 2026, the Civil Grand Jury found that:

• the County has not created an independent civilian oversight body, even though state law (Government Code § 25303 and AB 1185, passed in 2020) allows it;
• existing oversight is "fragmented, limited in scope, and largely internal to the RCSO's chain of command";
• the Sheriff's Advisory Committee had not shown measurable advisory output; and
• there were 29 in-custody deaths from March 2023 through late April 2026, after 18 deaths in 2022.

The grand jury recommended an independent oversight body with subpoena power, estimated to cost $2.5 million to $6.5 million a year, along with independent review of in-custody deaths and a public data dashboard. The Sheriff and the Board of Supervisors were required to respond, with the Board's response due by September 12, 2026. We have not confirmed the content of those responses.

The state has also acted. Under SB 1379, signed by Gov. Newsom in fall 2026, the County must separate the coroner from the Sheriff's Office and create an independent medical examiner by July 1, 2027, according to NBC Palm Springs and the Davis Vanguard. Sheriff Chad Bianco opposed the change. For families, this matters because cause-of-death findings in custody and use-of-force deaths will no longer come from the same department whose deputies were involved.

Cases brought against the Riverside County Sheriff

The Davis Vanguard reported that deputies have faced civil suits alleging drug trafficking, wrongful detentions, sexual harassment and excessive force. Coverage of SB 1379 cited a Care First California report putting the cost of in-custody death settlements from 2014 to 2024 at nearly $100 million. Two cases illustrate what these suits involve:

• Christopher Zumwalt. According to ABC7, his children alleged that after he became agitated in a sobering cell at the Larry D. Smith Correctional Facility in October 2020, deputies used pepper spray, a flash-bang and an electrified shield, then restrained him in a chair without medical monitoring. He died two days later. The County settled for $7.5 million in 2024. Sheriff Bianco said the deputies acted lawfully and called the settlement a business decision. Our guide to restraint chair deaths covers this kind of case.
• Alicia Upton. Her family sued the County and Sheriff Bianco over her April 2022 death at the Robert Presley Detention Center. According to KTLA, the suit alleges her risk of self-harm was visible on jail surveillance video. These are allegations; we have not confirmed an outcome.

Several other federal suits over 2022 and 2023 jail deaths were pending as of August 2024, according to Prison Legal News. For the full jail picture, see our Riverside County jail deaths guide.

These results were obtained by other lawyers, not by our firm. Every case is different. Past results, including those listed here, do not predict the outcome of any other case.

Can you sue Riverside County Sheriff's deputies?

Yes, in many situations. The usual defendants are the County of Riverside and the individual deputies.

Federal claims. Under 42 U.S.C. § 1983 you can sue deputies who used objectively unreasonable force or made an unlawful arrest or detention under the Fourth Amendment. The County can be liable under federal law when its own policy, custom or failure to train caused the violation. These claims generally have a two-year deadline and no claim form. Qualified immunity can protect individual deputies on federal claims in some cases, but not the County on a policy claim.

State claims. Battery, negligence, false imprisonment, wrongful death and Bane Act claims can be brought against the County, which is generally liable for deputies' acts in the scope of their jobs (Government Code § 815.2). Some immunities apply, but qualified immunity does not. These claims require a government claim within six months. Our excessive force guide explains the reasonableness standard in plain terms.

Complaint versus claim in Riverside County

A citizen complaint to the Sheriff's Office is a request for an internal investigation and possible discipline. It is handled inside the department; as the grand jury noted, Riverside County has no independent civilian oversight body to take it. A complaint is not a legal claim. It does not ask for money and it does not stop the six-month deadline.

If you were arrested or charged, talk with a lawyer before you give any statement in a complaint process. What you say can be used in your criminal case, and the civil deadline usually keeps running while the criminal case is open.

How to file a claim against Riverside County

According to Riverside County Risk Management, claims go to the Clerk of the Board of Supervisors, Attn: Claims Division, P.O. Box 1147, 4080 Lemon St., Riverside, CA 92502-1147, phone (951) 955-1060. Claims must be mailed or hand-delivered; fax and email are not accepted. Keep a stamped copy or mailing receipt.

For injury or death, the claim generally must be presented within six months of the incident (Government Code § 911.2). If the County rejects it in writing, you generally have six months from that notice to sue. Families and injured people lose state claims every year by waiting. Our six-month deadline guide explains the limited late-claim options.

What to do in the next few weeks

1. Get medical care and keep the records, bills and photos.
2. Write down the station, deputies' names or badge numbers, patrol car numbers, and witnesses.
3. Save video from phones, doorbells and businesses before it is erased.
4. Ask for body-worn camera video; video of critical incidents generally must be released within 45 days (Government Code § 7923.625).
5. After a death, request the autopsy and coroner's report in writing.
6. Do not sign anything from the County or give a recorded statement without advice.

LaCour's Riverside office

LaCour Trial Lawyers handles police misconduct and wrongful death in custody cases across California. Our Riverside office is at 11801 Pierce St., Suite 200, Riverside, CA 92505, and our trial partners lead each case. We have Spanish-speaking lawyers and staff, and we work on contingency, so there is no fee unless there is a recovery. Start with a free, confidential review.

Frequently asked questions

This guide is general information about California and federal law and about public records as of its date. It is not legal advice, and reading it or contacting us does not create an attorney–client relationship. Allegations in lawsuits are claims, not findings. Prior results do not guarantee a similar outcome. Attorney advertising.