How do criminal defense attorneys help their clients?
Investigate, Litigate, Mitigate, Negotiate, Educate: The System of Criminal Defense
Criminal defense is more than arguing in court or making a Perry Mason moment at trial. Learn how defense attorneys investigate, litigate, mitigate, and negotiate in the criminal justice system.
The Role of a Criminal Defense Attorney
When someone is accused of a crime, the criminal justice system can feel overwhelming, confusing, and one-sided. Police officers investigate. Prosecutors file charges. Judges manage court proceedings. Witnesses may give statements. Reports are written. Evidence is gathered. Court dates appear on the calendar. Deadlines come quickly.
In the middle of that system stands the criminal defense attorney—a procedural protection intended to prevent the government from trampling an individual’s rights.
A criminal defense attorney’s role is not simply to “get someone off” or to argue for the sake of arguing. The role is broader, more serious, and more important. Defense attorneys protect constitutional rights, test the government’s evidence, advise clients through difficult decisions, and work to ensure that the criminal justice system does not move faster than fairness allows.
At Gunn & Gunn, criminal defense has long been a core part of the firm’s work. The firm’s founder, Robert Gunn, was a prosecutor and municipal court judge before transitioning to criminal defense, and easily 85% of our firm’s current practice is criminal and DUI defense.
With that long history of criminal defense representation, we can summarize the criminal defense practice into five words:
Investigate. Educate. Litigate. Mitigate. Negotiate.
Each term describes a different part of the defense function. Together, they explain why criminal defense is not a single event, but a system of representation.
1. Educate: Guiding Clients Through an Unfamiliar System
Criminal defense attorneys are legal instructors for their clients. For many people, a criminal case is confusing and intimidating. Court dates, release conditions, discovery, negotiations, plea offers, trial rights, sentencing options, probation conditions, and collateral consequences are all common issues that arise during a criminal case.
A defense attorney helps the client understand the charge, the evidence, the legal process, the available options, and the risks of each decision. This includes explaining what the government must prove, what defenses may exist, what consequences may follow from a conviction, and what practical steps the client can take to improve the outcome.
Education is not separate from advocacy. A client who understands the process can make better decisions, assist in the defense, comply with court orders, and participate meaningfully in strategy. The attorney’s role is not merely to speak for the client in court, but to guide the client through the system with clear advice, honest communication, and practical judgment.
Criminal defense attorneys educate because informed clients are better able to protect their rights, understand their options, and make decisions that affect their future.
2. Investigate: Looking Beyond the Police Report
The most important role of a criminal defense attorney is to investigate.
In many criminal cases, the government’s version of events begins with a police report. However, a police report is almost never the full story. It is a summary written from a particular perspective, often after quick decisions, stressful encounters, incomplete information, or assumptions made in the field. Because the report does not tell the complete story, police officers have admitted in open court that they do not have all the facts when they reach a probable cause decision.
A defense investigation may include reviewing police reports, body-camera footage, dash-camera recordings, witness statements, 911 calls, photographs, medical records, forensic evidence, search warrants, lab reports, and other discovery. It may also include interviewing witnesses, visiting locations, reviewing timelines, identifying inconsistencies, and asking questions that were never asked during the initial investigation.
The purpose of a defense investigation is not to ignore bad facts; it is to understand all the facts.
Sometimes an investigation reveals weaknesses in the government’s case that show the evidence cannot prove the allegations. Sometimes it confirms that the evidence is serious, but not as serious as the charges allege. Sometimes the investigation shows that there is even more incriminating evidence than what the government has, and the client could face even more serious charges. Sometimes it uncovers facts that explain what happened in a more complete and human way, and can demonstrate that lenience at sentencing is appropriate (see negotiate and mitigate below).
A defense attorney investigates because liberty, reputation, employment, housing, firearm rights, immigration consequences, family stability, and future opportunities may all be affected by the outcome of a criminal case. As such, the case is never just the police report, and the defense attorney needs to know the complete story.
3. Litigate: Testing the Government’s Case
To litigate means to use the court process to challenge, test, and resolve legal issues.
Criminal defense is not passive. A defense attorney may file motions, challenge unlawful searches, seek exclusion of evidence, object to unreliable testimony, demand and compel discovery, question probable cause, challenge the admissibility of statements, or argue that the government cannot legally prove a charge.
Litigation is one of the ways the Constitution becomes meaningful in real life. Rights do not enforce themselves. The right to remain silent, the right to counsel, the right to be free from unreasonable searches and seizures, the right to due process, and the right to trial all require someone to assert them. A defense attorney must raise those constitutional arguments to a judge, and the judge must decide whether the Constitution requires the court to intervene.
This does not mean that every case goes to trial—in fact, fewer than 10% of criminal cases resolve at trial. It does mean that every case should be evaluated as if the evidence matters, the law matters, and the client’s rights matter. Good litigation can change the direction of a case. It can lead to dismissed counts, suppressed evidence, better negotiations, reduced exposure, or a more informed decision about trial.
Litigation is also a form of accountability. When police officers, prosecutors, or government agencies make mistakes, the court process provides a way to bring those issues before a judge or even a jury.
4. Mitigate: Presenting the Person, Not Just the Charge
Criminal charges are an allegation of wrongdoing in a bubble. A person is more than the accusation against them, and prosecutors and judges don’t know the person based on the charge alone.
To mitigate means to identify and present facts that reduce punishment, explain context, support treatment, demonstrate rehabilitation, or show why a particular outcome would be fair. Mitigation may include employment history, military service, family responsibilities, treatment progress, mental health concerns, substance-abuse treatment, community support, restitution efforts, lack of prior criminal history, or steps taken after the incident.
Mitigation does not always mean denying responsibility. In some cases, mitigation is most important when responsibility is accepted. It helps the court or prosecutor understand what outcome is constructive rather than merely punitive.
A defense attorney mitigates because criminal sentencing should not be mechanical. The same charge can involve very different people, facts, risks, needs, and consequences. Under the same facts, one client can accept a plea agreement, while another, facing serious consequences for their job, housing, or immigration status, cannot.
Mitigation can be especially important when a client is seeking probation, treatment, diversion, charge reduction, dismissal after compliance, or a sentence that allows the client to keep working, support family, maintain housing, and move forward.
A strong defense looks not only at what happened, but also at who the client is, what led to the case, what has changed since, and what outcome best serves justice.
5. Negotiate: Resolving Risk With Strategy
Most criminal cases do not end with a jury verdict. Many are resolved through negotiation.
Negotiation is not a sign of weakness. It is often a strategic process of evaluating risk, evidence, law, sentencing exposure, collateral consequences, and the client’s goals. A good defense attorney does not simply ask, “What is the offer?” The better questions are:
- • What can the government actually prove?
- • What evidence may be excluded?
- • What are the risks of trial?
- • What are the consequences of a conviction?
- • Are there immigration, firearm, employment, licensing, housing, or family-law consequences?
- • Is there a path to dismissal, reduction, diversion, or treatment?
- • Does the offer solve the client’s real problem, or only end the court case?
Negotiation requires preparation. The best negotiations often come after investigation, litigation, and mitigation have changed the prosecutor’s understanding of the case. They also come after the attorney and the client have confirmed the client’s goals for representation. Not every client wants to go to trial, and not every client wants to accept a plea deal—that is why effective communication between the attorney and the client is crucial to an effective negotiation.
A criminal defense attorney negotiates to give the client options and attempt to achieve the client’s goals. Sometimes the best option is trial. Sometimes the best option is a carefully structured plea agreement. Sometimes the right strategy changes as more evidence becomes available.
The client makes the most important decisions. The attorney’s role is to provide advice, explain risks, protect rights, and create the best available path forward.
Criminal Defense Is a System of Protection
The criminal justice system gives the government enormous power. Police can investigate and arrest. Prosecutors can charge. Courts can impose conditions, fines, probation, jail, prison, treatment requirements, no-contact orders, license suspensions and revocations, and other restrictions.
Criminal defense exists as the primary check on that enormous power.
A defense attorney investigates the facts, litigates the law, mitigates the consequences, negotiates possible resolutions, and challenges false certainty when the government’s story is too simple. These functions work together. They protect the client, but they also protect the integrity of the system itself.
A fair system requires more than punishment. It requires process. It requires scrutiny. It requires someone willing to stand beside the accused and insist that the rules be followed.
That is the role of criminal defense.
Contact Us for Help
If you have been charged with a crime in Oregon, or if you believe you are under investigation, do not wait to get legal advice. Contact Gunn & Gunn, P.C. to speak with an Oregon criminal defense attorney about your rights, your options, and the next steps in your case.
— Updated July 24, 2026, by Marcus A. Gunn
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