Arrested in Ontario, California?

Written by Kirk Tarman – Criminal Defense Attorney Serving San Bernardino County for Over 25 Years

Kirk Tarman is a Southern California criminal defense attorney with extensive experience representing clients throughout San Bernardino County, including Ontario, Rancho Cucamonga, Fontana, Upland, Montclair, Chino, and surrounding communities. His practice focuses exclusively on criminal defense, including DUI, domestic violence, drug charges, theft, assault, warrants, and felony cases.

Arrested in Ontario, CA? What Happens Next

Being arrested in Ontario, California can be stressful and confusing—especially if this is your first contact with the criminal justice system. Many people immediately ask:

What court will my case go to?
Do I have to appear in person?
Can a lawyer go for me?
Will I go to jail?
How long before charges are filed?

If you or a loved one was arrested in Ontario, understanding the process early can help protect your rights and avoid costly mistakes.

Which Court House Handles Ontario Cases?

Most adult criminal cases arising in Ontario, California are commonly handled at:

Rancho Cucamonga Superior Court (San Bernardino Justice Center)
Certain limited matters may be routed based on charge type, warrant status, or agency filing procedures.

Because Ontario is in San Bernardino County, criminal matters are generally processed through the San Bernardino County Superior Court.

Why This Matters

Each courthouse has different:

Departments
Calendar schedules
Arraignment procedures
Judge assignments
Filing timelines

Confirming the correct courthouse early is critical.

What Law Enforcement Agencies Arrest in Ontario?

Arrests in Ontario may involve one or more agencies depending on the incident.

Common Agencies in Ontario:

Ontario Police Department

Ontario Police services are provided through the San Bernardino County Sheriff’s Department.

They commonly handle:

San Bernardino County Sheriff's Department

May be involved in county warrants, jail transport, specialized enforcement, and regional operations.

California Highway Patrol

Often involved in:

DUI investigations
Major collisions
Freeway arrests
Suspended license / reckless driving cases

Why Does Ontario PD Transfer to West Valley?

After arrest, a person may first be held temporarily and then transferred for booking or housing at West Valley Detention Center.

Common reasons include:

County booking procedures
Need for longer custody housing
Bail processing
Warrant holds
Medical or classification needs
Serious misdemeanor or felony charges

A transfer does not automatically mean guilt or that the case is more serious. It often reflects normal jail procedures.

District Attorney Review

Police can arrest you, but prosecutors decide whether formal charges are filed.

Important:

There may be delays in filing decisions depending on:

Case complexity
Evidence review
Lab testing
Officer reports
Backlog in charging decisions

Strategic Opportunity

Early legal representation may allow an attorney to:

Contact the prosecutor before filing
Present mitigation
Clarify facts
Seek reduced or no filing in appropriate cases

3. First Court Date (Arraignment)

Your first appearance is usually the arraignment.

At arraignment:

Charges are read
Rights are explained
Plea entered
Bail reviewed if needed
Future dates scheduled

Can an Attorney Appear for You?

In many misdemeanor cases, an attorney may be able to appear on your behalf.

Bail and Release Conditions

If still in custody, the judge may:

Release you on your own recognizance (OR)
Set bail
Impose conditions
Keep you in custody in serious cases

Common Ontario Arrest Charges

DUI / DUI with accident
Domestic violence
Drug possession
Theft / retail theft
Assault / battery
Probation violations
Warrants
Suspended license offenses

Why Hiring an Attorney Early Matters

Many people wait until the court date. That can be a mistake.

Early representation may help:

Before charges are filed
With bail strategy
With court appearance planning
With evidence preservation
With negotiation positioning

Speak With Kirk Tarman – Criminal Defense Attorney for Ontario Cases

If you or a loved one was arrested in Ontario, California, early action can make a significant difference.

Kirk Tarman has represented clients throughout San Bernardino County for over 25 years and understands the local courts, procedures, and defense strategies that matter.

Call now: 909-466-9800