Washington State’s Mandatory Arrest Law for Domestic Violence: What Defendants Need to Know

Understanding Washington's Mandatory Arrest Law

In many states, if the police are called to a domestic dispute and the situation has calmed down, the officers might just separate the couple for the night. In Washington State, that is not an option. The legislature designed the state's domestic violence laws to remove the burden of pressing charges from the victim and place it entirely on law enforcement. If you or a loved one has been caught up in this strict system, it is vital to secure legal representation immediately. You can browse our US Lawyer Catalog to find a skilled criminal defense attorney in Washington State to protect your rights.

The cornerstone of this system is Wash. Rev. Code § 10.31.100. This statute legally compels police officers to make an arrest under specific circumstances, removing their discretion. It is intended to prevent further violence, but it often results in hasty arrests based on confusing or highly emotional situations.

The 4-Hour Rule Explained

Under Washington's mandatory arrest law, a police officer must arrest a suspect if they have probable cause to believe that the person, within the preceding four hours, has assaulted a family or household member. The assault does not have to be a severe beating; any unwanted touching, shoving, or action causing fear of imminent harm is enough. If the police arrive more than four hours after the incident occurred, the mandatory arrest rule no longer applies, though the officer still has the discretion to make an arrest or forward the report to the prosecutor for a summons.

Determining the Primary Aggressor

When officers arrive at a chaotic scene, both parties may be shouting and pointing fingers. The law requires the officer to arrest the person they believe is the 'primary physical aggressor.' To make this determination, police are trained to look at several factors:

• The comparative extent of injuries on both parties.
• The history of domestic violence between the individuals (if known to the officer).
• Whether any injuries appear to be defensive (e.g., scratch marks on the arms of the person who was being choked).
• Who made the initial 911 call.

Officers will document this in their reports, which are later submitted to courts like the Seattle Municipal Court, Seattle or the Spokane County Superior Court, Spokane.

What Happens if Both Parties Are Injured? (Mutual Combat)

If both parties have visible injuries, the situation becomes complicated. Washington law actively discourages police from arresting both people (known as dual arrests). Instead, the officer must deeply analyze the scene to figure out who started the physical altercation and who was merely defending themselves. If the officer genuinely cannot determine the primary aggressor, they may arrest both individuals, but this is rare. The court's interpretation of evidence in these chaotic situations is often guided by precedents such as State v. Davis, 154 Wash. 2d 291 (WA Supreme Court 2005), which examines the admissibility of excited utterances and immediate evidence.

Why the Alleged Victim Cannot Stop the Arrest

A common misconception is that the person who called 911 can simply tell the police, 'I don't want to press charges,' and the officers will leave. Because of the mandatory arrest law, the victim's wishes are irrelevant at the scene. Once the officer has probable cause, the arrest must happen.

Furthermore, once the case is handed to the prosecutor, only the prosecutor has the power to dismiss the charges. At the initial arraignment, the judge will almost certainly issue a mandatory Form NC 02.0110, Washington, Municipal Court, Domestic Violence No Contact Order. Even if the victim begs the judge to let the defendant come home, the court will typically enforce a strict no-contact period. Violating this order, even with the victim's permission, is a separate crime under Wash. Rev. Code § 7.105.450.

Bail, Costs, and Immediate Steps

Being arrested for domestic violence is an expensive and terrifying ordeal. Below is a breakdown of what a defendant might face financially in the immediate aftermath of an arrest in Washington:

Frequently Asked Questions (FAQ)