Tucson Criminal Trespass Defense — Experienced Representation from a Former Judge

Arizona divides criminal trespass into three degrees, each addressing different types of property and carrying different penalties:

• Third-Degree Criminal Trespass (A.R.S. § 13-1502) — A person commits third-degree criminal trespass by knowingly entering or remaining unlawfully on any real property after a reasonable request to leave by the owner, the owner’s agent, or a law enforcement officer. This also includes entering property if reasonable notice prohibiting entry has been posted (such as “No Trespassing” signs). Third-degree criminal trespass is a Class 3 misdemeanor, punishable by up to 30 days in jail and a $500 fine.
• Second-Degree Criminal Trespass (A.R.S. § 13-1503) — A person commits second-degree criminal trespass by knowingly entering or remaining unlawfully in or on a nonresidential structure, a fenced commercial yard, or a residential yard. This degree commonly applies to entering fenced business properties, construction sites, and yards surrounding homes. Second-degree criminal trespass is a Class 2 misdemeanor, punishable by up to 4 months in jail.
• First-Degree Criminal Trespass (A.R.S. § 13-1504) — A person commits first-degree criminal trespass by knowingly entering or remaining unlawfully in or on a residential structure, or by knowingly entering or remaining unlawfully in a fenced residential yard and defacing, mutilating, or destroying property, or burning a structure on the property. First-degree criminal trespass is a Class 6 felony when it involves a residential structure, and a Class 1 misdemeanor when it involves a fenced residential yard. The felony classification reflects the seriousness of entering someone’s home without permission.

The term “unlawfully” means without the consent of the person who has authority over the property. A person who was once invited onto property but whose permission was revoked can commit trespass by remaining after being asked to leave.

Criminal trespass charges arise in a wide variety of circumstances, many of which involve misunderstandings or disputes rather than criminal intent:

Domestic and Relationship Disputes. Trespass charges frequently arise when a former romantic partner, roommate, or family member returns to a shared residence or property after being told not to. When an order of protection or injunction against harassment is in place, entering the protected person’s residence can result in both trespass charges and protective order violation charges.

Landlord-Tenant Disputes. Conflicts between landlords and tenants sometimes result in trespass allegations. A tenant who has been lawfully evicted but returns to the property can be charged with trespass. Conversely, a landlord who enters a tenant’s unit without proper notice may face trespass allegations under Arizona’s landlord-tenant act.

Commercial Property. Entering a business after being banned (trespass admonishments from stores, malls, or other commercial properties), entering construction sites, and remaining on commercial property after business hours are common bases for second-degree trespass charges.

Public Land and Restricted Areas. Entering restricted areas on public land, crossing posted boundaries in rural areas, and entering government facilities after hours can all result in trespass charges.

Homelessness-Related Charges. Unfortunately, individuals experiencing homelessness are disproportionately charged with criminal trespass for sleeping in or near commercial properties, entering abandoned structures, or being present on private property. These cases often benefit from advocacy for alternative resolutions and social services referrals.

Criminal trespass charges are highly defensible because the prosecution must prove both that the entry or remaining was unlawful and that the defendant acted knowingly. Effective defense strategies include:

Lack of Knowledge. The defendant must have known that they were entering or remaining on property without authorization. If signage was absent, ambiguous, or not visible, if the defendant reasonably believed they had permission, or if the property boundaries were unclear, the knowledge element may not be satisfied.

Consent or Claim of Right. If the defendant had permission to be on the property—express or implied—or had a legal right to be there (such as a tenant, easement holder, or guest), the entry was not unlawful. Disputes about whether consent was given or revoked are common.

Inadequate Notice. For third-degree trespass, the prosecution must prove that “reasonable notice” prohibiting entry was given. Signs that are too small, not visible, or not posted at all entry points may not constitute reasonable notice.

Challenging the Trespass Admonishment. Many trespass cases in commercial settings rely on “trespass admonishments”—written notices banning a person from specific property. The scope, duration, and service of these admonishments can be challenged.

Constitutional Defenses. If the defendant was exercising First Amendment rights (peaceful protest, leafleting) or was on property that is generally open to the public, constitutional defenses may apply.