What Is the Law for Assault with a Deadly Weapon in CA?
- Blair Goss
- May 28
- 6 min read
Assault with a deadly weapon is a serious crime in California, and it is often a felony conviction that carries a lot of significant consequences. Many people in the Sacramento area face these charges, and they must have an excellent lawyer working with them from the start.
Anyone who is accused of causing substantial physical injury while using a lethal weapon must understand what is at stake. Though it's possible that an assault can bring a misdemeanor conviction, if an assault weapon of any kind was used, it could be a felony charge with jail time and fines of up to ten thousand dollars.
It's never a good idea to face these charges alone. A defense attorney from Goss Law can help, they can explain the role of intent in CA assault charges as well.

Understanding California Penal Code Section §245(a)(1)
The first step in creating a defense for a deadly weapon assault is to understand the law. California law defines assault with a deadly weapon via Penal Code §245(a)(1). This law makes it a crime to:
Commit an assault with a deadly weapon or instrument (firearm, knife, motor vehicle, etc.)
Use force likely to produce great bodily injury
The Full Legal Definition a Deadly Weapon Assault - Penal Code §245(a)(1)
In California, a person is guilty of assault with a deadly weapon if they:
Willfully commit an assault that would result in the application of force to another
Act with force likely to produce great bodily injury or with a deadly weapon
Were fully aware that their actions would result in use of force
Has the present ability to apply force with the weapon (or by other means)
What this means is that even if no one is actually injured in the incident, a prosecutor can still charge someone with the crime of assault with a deadly weapon.
What is Considered a Deadly Weapon Based on California Law
The term "deadly weapon" is more than simply a gun or knife. Under California law, a deadly weapon is defined as any object, instrument, or weapon that is capable of killing someone or causing great bodily harm. Here are some examples:
Firearms (Including a handgun, machine gun, semiautomatic firearm, etc)
Knives, broken glass, razors
Blunt object, bat, club, crowbar
Motor vehicles
Bottles that produce great bodily harm
Dangerous animal, such as a dog trained to attack humans
Any object capable of causing serious harm can be a deadly object from a pencil or belt to a cell phone or utensil.
The Difference Between Assault and Battery
Another thing that anyone facing these charges should understand is the difference between battery and assault.
Battery is actual physical contact that results in harm
Assault is the attempt or threat to cause harm
Again, this means that a person can be charged with assault with a deadly weapon even if there was no physical contact. As long as there is intent and a reasonable person would see the act as being done in a harmful or offensive manner, it's possible that assault charges could be applied.
Legal Penalties for Assault with a Deadly Weapon in California
Assault with a deadly weapon can be charged as either a misdemeanor or a felony. It depends on things like the facts of the case, the type of weapon that was used, and whether or not the alleged victim was a protected person, like a police officer who was engaged in his or her duties.
Misdemeanor Penalties
Misdemeanor conviction carries up to one year in county jail and/or a fine of up to $1,000. It's also possible that the person could get misdemeanor probation, community service, or even anger management classes.
Felony Penalties
Felony ADW conviction is more serious, and in most cases, the person gets 2-4 years in state prison and a fine not exceeding ten thousand dollars. Other penalties might include felony probation, and if serious bodily harm occurred, the person could get a strike under the "Three Strikes" law.
Enhanced Penalties
There are also enhanced penalties that are possible. For instance, a defendant may face up to 12 years in prison if the victim was a peace officer, firefighter, or other protected person, such as an elderly individual. This also applies if a firearm was used in the criminal offense.
California criminal jury instructions will apply with either a felony or misdemeanor in regard to sentencing.
Examples of Assault with a Deadly Weapon Charges
To fully understand how these laws apply in real life, it is helpful to look at some examples:
Example 1: Road Rage Incident
Person A gets into a verbal altercation with Person B when in traffic on the freeway. As traffic starts to move, Person A swerved their vehicle in such a way towards Person B that it was seen as done in a threatening manner. Though no one was injured, Person A was charged with assault with a deadly weapon. In other words, there was belief that he acted willfully in an inherently dangerous way.
Example 2: Bar Fight with a Bottle
A woman is at a bar with friends, and she gets in a heated argument with another patron. The argument elevates so much that she picks up her beer bottle and swings it toward the other person. The bottle does not make contact with anyone, but she is still charged with assault with a deadly weapon because her actions showed that she acted in a rude or angry way.
Example 3: Knife Displayed During Robbery
A man is in the middle of a robbery and he pulls a knife. He does not stab anyone, but witnesses agreed that the defendant committed the act with a deadly weapon. The simple act of brandishing and threatening someone with a weapon is enough for charges. In this case, related offenses may also play a role in charges.
Legal Defenses to Assault with a Deadly Weapon in California
An experienced Sacramento criminal defense lawyer can explore several potential defenses to fight ADW charges. The prosecutor must prove the crime was committed without a reasonable doubt, so the defense must come up with a strategy to do this. Here are some of the common defenses that lawyers use in these cases:
Self-Defense or Defense of Others
Anyone has the right to defend themselves or another person if they have reasonable belief that they were in an inherently deadly situation on in imminent danger.
No Deadly Weapon Involved
If the item used in a crime does not legally qualify as a “deadly weapon,” or it wasn’t used in a way that could cause serious harm, it's possible this criminal defense attorney in Sacramento could get the case dropped.
Lack of Intent
If the prosecution cannot prove that the defendant's act was done with the intention to use force, or that they had the ability to follow through, the defense can present doubt.
False Accusations or Mistaken Identity
Assault charges often arise from emotionally charged incidents, such as in a domestic situation or in a situation where a lot of anger is involved. An accuser may lie, exaggerate, or wrongly identify the defendant. Eyewitness accounts, surveillance footage, and alibi witnesses can help challenge any claims.
Impact of an ADW Conviction
A conviction for assault with a deadly weapon has life-altering consequences beyond a prison sentence and/or fines. These include:
A permanent criminal history
Difficulty finding a job or home in the future
Loss of gun rights, in felony cases
Change in immigration status, including deportation
Loss of professional licenses
Because of the seriousness of these crimes, it's imperative that a person charged with assault with a deadly weapon have a law firm, like Goss Law, on their side.
Diversion Programs and Plea Bargains
In some cases, especially for first-time offenders or those with mental health or substance abuse issues, a criminal defense attorney can negotiate for other sentences or options.
These include pretrial diversion programs or plea agreements.
They might, for example, be able to reduce the charges to simple assault, which has less severe consequences. They also might be able to get their client into counseling, anger management classes, or community service instead of time in a California state prison.
Every case is different, but a strong defense strategy often means the difference between a jail sentence and a second chance.

What To Do If Charged with Assault with a Deadly Weapon in Sacramento
There are certain things that a person needs to do if they are charged with assault with a deadly weapon.
Don't Talk, and Stay Silent
Anything a person says to law enforcement can and will be used against them. If a police officer begins asking questions, ask for an attorney, even if totally innocent.
Contact a Criminal Defense Lawyer Immediately
An experienced attorney can protect the rights of the accused. They will examine the evidence and start building a defense right away. They can also advise on the penalty for assault on a public servant in CA.
Preserve Evidence
Evidence is important. Things like text messages, witness names, surveillance footage, or any other information that could support the case should be shared with the attorney.
Final Thoughts: Protect Your Future
Facing a charge under California Penal Code §245(a)(1) is serious. Whether the person is wrongly accused or made a one-time mistake, the right legal representation can make a critical difference in how the case will turn out.
A skilled Sacramento criminal defense lawyer from Goss Law will investigate the facts, challenge weak evidence, and advocate for the best possible outcome—whether that’s dismissal, acquittal, or a reduced charge.
Get in touch today for a consultation.
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