A cadre of civil rights groups brought a lawsuit late Wednesday challenging Riverside County’s use of cash bail to detain people as they await trial, citing squalid conditions inside the county’s jails where dozens of inmates have died in recent years.

The class-action suit is the latest to challenge the legality of cash bail systems in California after a 2021 state Supreme Court ruling found it is unconstitutional to jail defendants solely because of their inability to pay their way out from behind bars.

“Every day, Riverside County imprisons people based on nothing more than their inability to pay an arbitrary, pre-set amount of cash that Defendants demand for their release,” attorneys for the civil rights groups argue in the 80-page complaint. “These individuals are not detained because they are too dangerous to release: The government would release them right away if they could pay. They are detained simply because they are too poor to purchase their freedom.”

The suit was brought by the Washington, D.C.-based nonprofit Civil Rights Corps, Public Justice in Oakland and several other law firms on behalf of two people incarcerated in Riverside County jails and two local faith leaders. It names as defendants the Riverside County Sheriff’s Department, Sheriff Chad Bianco, the Riverside County Superior Court system and the county.

Lt. Deirdre Vickers, a sheriff’s department spokesperson, said she could not comment on pending litigation, as did a representative for the county court system. The county executive’s office did not immediately respond to requests for comment.

While the suit argues money bail is unconstitutional across California and seeks an injunction ending its use, attorneys said they are focusing on Riverside County following a spate of deaths in the jails in 2022. That year, Riverside County recorded 18 inmate fatalities, the highest number in a decade.

The following year, California Atty. Gen. Rob Bonta, a Democrat, opened what remains an ongoing investigation into complaints about living conditions in the county jails and allegations that deputies use excessive force against detainees.

Inmate deaths have fallen since 2022. The county reported 13 jail fatalities in 2023 and six last year, according to Vickers.

Bianco — a law-and-order conservative who has joined a crowded field of Democrats to succeed Gov. Gavin Newsom in the 2026 election — has previously dismissed the state’s investigation into his jails as politically motivated. Bianco maintains the jail deaths, many of which authorities attribute to drug overdoses and suicides, are a reflection of the inmates’ life choices rather than a sign of any problem with the jail system.

“Every single one of these inmate deaths was out of anyone’s control,” Bianco said after news of the state investigation broke. “The fact of the matter is that they just happened to be in our custody.”

The cash bail system has deep roots in the U.S. as a means of pressuring defendants to show up for scheduled court appearances. Attend trial, and the sizable cash payments are returned to you or your family; skip court, and you forfeit your deposit.

Critics argue it effectively creates a two-tiered justice system, allowing wealthy defendants to pay their way out while awaiting trial, and leaving low-income defendants stuck behind bars. Proponents of eliminating the bail system contend that decisions about whether to jail defendants ahead of trial should be based on the severity of their crimes and the risk they pose to public safety, and not hinge on their income status.

Brian Hardingham, a senior attorney with Public Justice, said people sometimes spend days in jail awaiting their first court appearance, only for a prosecutor to decline to file a case presented by local police. That stint behind bars can have an outsize effect on people’s lives, especially if they are low-income, Hardingham said.

“You meet people with 6-month-old kids in jail who, if they’re lucky, there is a partner or a parent or someone who can watch their kids,” he said, adding that even a brief stretch in a county jail can result in people losing their job, vehicle or even their residence.

Supporters of the cash bail system, including many law enforcement groups, say that doing away with it would leave too many defendants free to potentially flee and re-offend, leading to crime spikes.

The issue grew increasingly controversial during the COVID-19 pandemic, when the virus spread with deadly consequences through the state’s jails and prisons. Los Angeles County instituted a zero-bail policy for most offenses in 2020, trying to reduce jail crowding at a time when the virus was spreading rapidly. That policy was rescinded in June 2022.

Despite concerns from police groups, a 2023 report to the L.A. County Board of Supervisors showed re-arrest and failure-to-appear rates remained relatively static among those freed pre-trial while the zero-bail policy was in place.

A similar lawsuit to the one filed against Riverside County prompted Los Angeles County court officials to revise their bail policies in 2023. Under the new system, the vast majority of defendants accused of misdemeanors or nonviolent felonies are now cited and released, or freed under specified conditions after a judge reviews their case. Defendants accused of serious offenses, including murder, manslaughter, rape and most types of assault, still face a stiff cash bail schedule.

Fears that the new system would result in a crime spike have not been borne out. Total crime in areas patrolled by the Los Angeles County Sheriff’s Department fell by about 2% in 2024, the first calendar year the reduced bail policy was in place, according to department data. The city of Los Angeles has seen significant decreases in the number of robberies, property crimes and aggravated assaults committed this year, as of mid-May, records show.

Given the 2021 state Supreme Court ruling and the changes in Los Angeles, Hardingham said he is hopeful other counties will shift their bail policies without having to engage in a court fight.

“We would hope that they would be willing to see the writing on the wall and make the changes that are necessary,” he said.