Tempe Criminal Defense Lawyer — Local Defense From a Former Judge, Prosecutor, and Police Officer

A Tempe criminal defense lawyer at Oliverson Law defends clients accused of misdemeanors and felonies under Arizona Revised Statutes Title 13 in Tempe Municipal Court, Maricopa County Justice Courts, and Maricopa County Superior Court. Our main office is in Tempe at 60 E Rio Salado Pkwy, Suite 900. Call (480) 582-3637 for a free case evaluation.


How Does Arizona Classify Criminal Charges in Tempe and Maricopa County?

Criminal cases in Tempe are prosecuted under Title 13 of the Arizona Revised Statutes. Which court hears the case depends on the charge. Tempe Municipal Court hears most city-code and Class 1, 2, and 3 misdemeanor cases arising from alleged conduct inside Tempe city limits. Maricopa County justice courts hear state-law misdemeanors in their precincts. Maricopa County Superior Court hears all felony cases from the county, including those arising in Tempe.

Misdemeanors (ARS 13-707)

Arizona misdemeanors are divided into Classes 1, 2, and 3 under ARS 13-707. Class 1 misdemeanors can result in up to six months in county jail. Even a misdemeanor conviction creates a permanent criminal record unless later set aside under ARS 13-905 or sealed under ARS 13-911.

Felonies (ARS 13-702 and 13-703)

Arizona felonies are divided into Classes 1 through 6 under ARS 13-702 (first-offense sentencing) and ARS 13-703 (repetitive offenders). Class 1 is the most serious. Actual exposure depends on the specific charge, aggravating or mitigating factors, and whether the offense is designated dangerous under ARS 13-704.


What Happens After a Criminal Arrest in Tempe?

Arizona’s criminal process moves quickly, and the decisions made in the first 48 to 72 hours after an arrest shape the rest of the case. The exact timeline depends on the charge and the court, but most Arizona cases follow the same four stages.

Arrest and Initial Appearance

If you are arrested, Rule 4.1 of the Arizona Rules of Criminal Procedure requires that you be brought before a judge for an Initial Appearance within 24 hours. That is when release conditions — bond, own-recognizance release, or pretrial detention — are set. Having counsel in place before the Initial Appearance can directly affect the conditions the court orders.

Arraignment and Plea Entry

Felony arraignments in Superior Court and misdemeanor arraignments in city or justice court are where the charges are formally read and a plea is entered. A not-guilty plea at arraignment preserves every defense and triggers the State’s disclosure obligations under Rule 15.

Pretrial Motions and Disclosure Review

This is the stage where most criminal cases are decided. Motions to suppress evidence, motions challenging the charging instrument, and review of police reports, body camera video, and witness statements all happen here. A successful suppression motion can end a case before trial.

Resolution: Plea, Diversion, Dismissal, or Trial

Most Arizona criminal cases resolve through a negotiated plea, a diversion program, or dismissal after a successful defense motion. When trial is the right path, Rule 8 sets time limits the State must meet. Our approach is to prepare every case as if it is going to trial, because that preparation is what produces better plea offers.


How Does Our Team Build Your Tempe Criminal Defense?

An effective Arizona criminal defense is built around four questions: Was the State’s evidence lawfully obtained? Can the State prove every element of the charge beyond a reasonable doubt? Are there affirmative defenses or justifications that apply? And what resolution produces the best long-term outcome for the client? Every case we take is worked through this framework.

Challenging the Stop, Search, or Seizure

Fourth Amendment issues are where many Arizona criminal cases break down. Traffic stops without reasonable suspicion, searches beyond the scope of consent, and warrantless home entries without exigent circumstances all create suppression arguments under ARS 13-3925 and the Fourth Amendment.

Attacking the State’s Evidence

Chain of custody, lab testing protocols, officer credibility, body-camera gaps, and witness reliability are all challengeable. The State must prove every element of the charge beyond a reasonable doubt — breaking any single element ends the prosecution.

Raising Affirmative Defenses

Arizona recognizes self-defense under ARS 13-404, defense of a third person under ARS 13-406, defense of premises and property, necessity, duress, and mistake of fact. When the facts support it, we raise these defenses early and present them to the jury.

Negotiating From Trial-Ready Strength

Our preferred resolution is always dismissal or diversion. When a plea is the right outcome, we negotiate from the leverage created by trial preparation. Prosecutors move their offers when they see a defense that is ready to go.


Why Does Our Background Give You an Advantage?

Oliverson Law was founded in 2009 by Derek Oliverson, who brings a career spanning law enforcement, prosecution, and the judiciary. He earned his B.S. in Criminal Justice (magna cum laude) from Southern Utah University and his J.D. with a concentration in litigation from Creighton University School of Law. He was admitted to the Arizona Bar in October 2009.

Before founding the firm, Derek served as a police officer in Henderson, Nevada, worked as a criminal prosecutor in Mohave County, Arizona, and presided as a judge at both Page Magistrate Court (overseeing adjudication of 3,000+ cases annually) and Glendale City Court (starting in 2012, overseeing 40,000+ cases annually). He left the bench in 2014 to focus on criminal defense.

Attorney David Tangren is a graduate of the University of Arizona James E. Rogers College of Law where he served as Note and Comment Editor on the International and Comparative Law Journal. Before joining Oliverson Law, David was a prosecutor at the Pima County Attorney’s Office, handling cases from misdemeanors through the felony trial team in the Property and Narcotics Bureau.

Former Judge (Glendale City Court)
Former Prosecutors (Mohave & Pima County)
Former Police Officer
4.9/5 Rating (150+ Reviews)

Which Arizona Counties and Cities Do We Serve?

Oliverson Law’s main office is located in Tempe at 60 E Rio Salado Pkwy, Suite 900, Tempe, AZ 85281. We represent clients in Tempe Municipal Court, Maricopa County justice courts, and Maricopa County Superior Court, and regularly appear in courts throughout Maricopa County and Mohave County.

Maricopa County (Population: 4,551,524)

Maricopa County Superior Court at 201 W Jefferson St, Phoenix handles all felony cases. Misdemeanor cases are heard in the 26 justice court precincts and municipal courts located throughout the county, including regional facilities in Mesa (222 E Javelina Ave), Surprise (14264 W Tierra Buena Ln), and North Phoenix (18380 N 40th St).

Mohave County (Population: 222,255)

Mohave County Superior Court at 415 E Spring St in Kingman handles felony cases. Our founder Derek Oliverson began his legal career as a prosecutor in Mohave County and maintains direct familiarity with the local courts and procedures.


Frequently Asked Questions

Tempe Municipal Court hears most city-code violations and state-law misdemeanors arising inside Tempe city limits. Maricopa County justice courts hear state-law misdemeanors in their precincts. Maricopa County Superior Court at 201 W Jefferson St in Phoenix hears all felony cases from the county, including those arising in Tempe.

Misdemeanors are divided into Classes 1, 2, and 3 under ARS 13-707. Felonies are divided into Classes 1 through 6 under ARS 13-702 and ARS 13-703. Felonies carry collateral consequences — loss of firearm rights, voting rights while incarcerated, and professional-licensing barriers — that misdemeanors generally do not.

Yes. Even a Class 1 misdemeanor conviction creates a permanent Arizona criminal record that can affect employment, licensing, housing, and immigration. A criminal defense lawyer often negotiates charge reductions, diversion, or dismissal before a conviction is entered.

Arizona does not have traditional expungement. ARS 13-905 allows qualifying convictions to be set aside. ARS 13-911, effective January 1, 2023, allows many Arizona criminal cases to be sealed after a waiting period. Eligibility depends on the class of the offense and other statutory factors.

Under the Fifth and Sixth Amendments and Arizona law, you have the right to remain silent and the right to counsel. You do not have to answer questions, make statements, or consent to searches without a lawyer present.

Oliverson Law is based in Tempe, and our team includes a former judge (Glendale City Court), former prosecutors (Mohave County and Pima County), and a former police officer. That combined experience on the charging, prosecuting, and judicial sides of Arizona criminal cases is what informs our defense strategy. We have been defending Arizona criminal charges since the firm was founded in 2009.


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Former Judge · Former Prosecutor · Former Police Officer · Founder, Oliverson Law
Last updated: April 22, 2026
Talk to a Former Judge About Your Tempe Criminal Case

Derek Oliverson has presided over thousands of cases from the bench, prosecuted criminal cases in Mohave County, and patrolled streets as a police officer. Now he uses that experience to defend you.

Call (480) 582-3637Or request a free consultation online

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