Criminal Defense Attorney in Phoenix, AZ

When you run into legal trouble, you need someone you can trust on your side. The Law Offices of John S. Cossum will apply decades of experience to your legal case, giving you the best chance for justice that a criminal lawyer can. Whether you were wrongfully accused, made a mistake or were just trying to help your family, we understand and we’re here to help. We specialize in a wide array criminal defense cases, including drug offenses, white collar crimes, DUI, sex crimes, domestic violence, crimes of violence and various forms of fraud. Whether you’ve been accused of drug trafficking, embezzlement, sexual assault or driving under the influence, you’ll need a expert you can trust defending you in the courtroom, and our criminal lawyer will be that person for you.


Criminal law areas of practice

No matter what you’ve been accused of, we’re firm believers in the adage “innocent until proven guilty,” and we will do whatever it takes to protect your legal rights and build your case to defend you. With attorney John Cossum’s history of working as both a state and federal prosecutor, Mr. Cossum knows how the prosecution will present their case against you and use that knowledge to your advantage. Our criminal lawyer will work with you to develop a strategy that will give you the best possible outcome. We put all of our focus and effort into every case we take because we know that it’s your life and your future in our hands.

Drug offenses

We’re able to handle drug charges ranging from simple possession of paraphernalia to possession with intent to sell and manufacturing. Arizona has a complex set of statutes as they relate to drug crimes and, depending on the drug and quantity involved, you might be eligible for entry a drug offender diversion program to years in prison. It is therefore important for you to hire a great criminal attorney for the best possible result.

DUI offenses

Whether you’ve been charged with a first-time misdemeanor DUI or you’re a repeat offender charged with aggravated DUI, our criminal lawyer will fight to have the charges against you dismissed or have you found not guilty.

In Arizona, almost all first time DUI charges are tried as misdemeanors, but if you’ve been charged with an aggravated DUI or it’s your third or more offense in the past seven years, you will be looking at a felony. Sentencing for a DUI in Arizona, even for a first offender with no accident or injuries, can include thousands of dollars in fines and fees, a suspended license for up to 3 years, and could include mandatory jail time of up to 45 days, depending upon your blood or breath alcohol level.

Why Choose John S. Cossum?

  • Over 30 Years of Experience
  • Available anytime 24/7
  • Personalized Legal Representation
  • Unsurpassed Client Service
  • Commitment to Legal Excellence
  • Proudly Serving Phoenix, Scottsdale and Surrounding Areas