A criminal defense attorney represents a person accused of a crime by examining the evidence, protecting the person’s legal rights, explaining available choices, and advocating for them in court and in discussions with prosecutors. If you are asking what does a criminal defense attorney do, the answer is more than appearing at trial: much of the work happens before a trial, and the right steps depend on the facts of the case. For a broader local overview, see our guide to criminal defense in Sonoma County.
Being accused can make everyday decisions feel urgent and confusing. A defense attorney helps make the legal process understandable and works to ensure the case is evaluated based on the evidence and applicable law. No attorney can promise a particular result. The work is to investigate, advise, and advocate while keeping you informed about meaningful decisions. The attorney’s specific duties depend on the charges, the available information, the stage of the case, and the client’s instructions.
Reviewing evidence and identifying where the prosecution's case is weak
One of a defense attorney’s central responsibilities is to examine the evidence the prosecution may use and assess what it does—and does not—show. A charge is an accusation, not proof. The prosecution must meet its burden under the law, and a careful review can reveal questions about how evidence was collected, what a witness actually observed, or whether the evidence supports each element of an alleged offense.
Depending on the case and what is legally available, review may include police reports, witness statements, photographs, recordings, digital records, forensic material, and other discovery. The attorney compares accounts, looks for inconsistencies, and considers whether information is missing or needs clarification. For example, a report may summarize an encounter differently from a video, or a witness’s description may change across statements. Those differences do not automatically decide a case, but they can matter when evaluating the evidence.
Review is not just a matter of collecting documents and reading them once. Counsel may organize information by date and source, separate firsthand observations from conclusions, and compare the details in each account. In a traffic-stop case, for example, timing, location, statements, and the sequence of events may need to be considered together. In a case involving several witnesses, counsel may examine what each person could see or hear and whether the accounts agree on important points. The question is not simply whether a document exists; it is what it can reliably establish and how it relates to the legal issues.
The attorney may also investigate facts beyond the prosecution’s materials. That can mean identifying potential witnesses, seeking relevant records, documenting the scene, or consulting an appropriate expert when the issues warrant it. The specific investigation must fit the case; not every source will be relevant or admissible. A practical investigation plan starts with focused questions: Which disputed fact could affect the case? Who may have direct knowledge? Is there a record that could confirm or contradict an account? Are there time limits or preservation concerns? Counsel can then decide what steps are appropriate and lawful.
What is alleged? Identify the charged offenses and the facts the prosecution says support them.
What supports the allegation? Review the available evidence and how it was obtained.
What remains uncertain? Note conflicts, gaps, reliability concerns, and possible alternative explanations.
What needs follow-up? Determine whether additional records, witnesses, or legal analysis may help answer those questions.
The Legal Information Institute describes criminal attorneys’ work as including legal research, developing a case theory, gathering supporting evidence, and analyzing the evidence against a client. These are common parts of the role, though the appropriate work in any particular matter depends on its circumstances. See Cornell Law School’s overview of a criminal attorney.
Clients can help this work by sharing documents and information accurately, even when something seems unimportant or uncomfortable. Keep original messages, letters, photographs, and notices in their existing form. Do not edit, delete, or forward sensitive material without first asking counsel how to handle it. If you remember additional details later, tell the attorney rather than trying to make an earlier account sound more certain. A careful review depends on getting the full context, not on a client having a perfect memory.
Filing motions that protect your rights before trial
A motion asks the court to make a decision about a legal or procedural issue. Defense counsel may file motions when there is a sound legal basis to ask the court to address evidence, the conduct of the case, or another issue affecting the client’s rights. A motion is not a guaranteed way to exclude evidence or end a case. The judge considers the law and the facts presented, and the result depends on the issue.
For example, if the circumstances of a search or a statement raise a legal question, counsel may evaluate whether a motion is appropriate. Other motions can address procedural matters or request that the prosecution provide required information. The attorney must assess the record, deadlines, governing law, and strategic consequences before deciding what to file. Raising an issue without adequate support can distract from stronger arguments, so motions should be specific and grounded in the case.
Preparing a motion usually involves more than writing a request. Counsel may need to identify the precise question for the court, review the relevant records, research the applicable law, and explain how the facts fit the legal standard. The prosecution may respond, and the court may schedule a hearing or request further briefing. At a hearing, the judge may hear argument or consider evidence, depending on the issue and procedure. The attorney then explains the ruling and what it means for the next stage. The client should ask which parts of the case a motion addresses and what remains unresolved, rather than assuming that one ruling decides everything.
Pretrial legal work also includes tracking court dates and disclosure, reviewing the prosecution’s evidence as it becomes available, and preparing responses to developments. When the case involves a traffic stop, chemical testing, or other specialized issues, the attorney may consider the sequence of events and applicable rules. Learn more about the firm’s DUI defense services if that is relevant to your situation.
Not every case requires a motion, and filing more motions is not automatically better. An attorney considers whether a motion is supported, whether the record is ready, what relief the court could grant, and whether the issue affects the defense in a meaningful way. Counsel also explains uncertainty: a motion can be denied, granted in part, or lead to a different procedural step. Knowing what a motion can and cannot accomplish helps the client understand why it is being considered.
Negotiating with prosecutors on charges and sentencing
Many criminal cases involve discussions between the defense and prosecution. A defense attorney can evaluate whether to negotiate, communicate the client’s position, and assess any proposed resolution against the available evidence, legal risks, and the client’s goals. The attorney can explain possible consequences and help the client understand what a proposal would require. The client—not the lawyer—makes the decision whether to accept a plea offer after receiving advice.
Negotiation is not simply asking for a reduced charge. Counsel may need to identify factual or legal issues, present relevant context, and explain why a particular outcome should be considered. Depending on the case, that context might include records or other information that is appropriate to share. The attorney also needs to explain uncertainty: no proposal is guaranteed, and a case may proceed to hearings or trial if the parties do not reach an agreement.
A useful discussion of an offer is concrete. What charge or charges would remain? What terms are written into the proposal? Is a sentencing recommendation part of it, and who would make the final decision? What rights would the client give up by entering a plea? Are there possible consequences beyond the immediate court sentence that need to be investigated? The answers are case-specific, so the client should ask the attorney to explain any unfamiliar term and how it applies to the facts at hand.
It can help to compare the available paths without treating either as certain. Counsel may explain the strengths and risks of the evidence, what issues could be raised in court, what the proposal would require, and what might happen if negotiations do not resolve the case. That discussion is not a prediction or a promise. It is a way to make a decision with a clearer view of the choices and uncertainties. A client may also need time to consider an offer and ask follow-up questions, subject to any applicable deadlines.
Before deciding, a client should understand what rights they would give up by entering a plea, the terms of the agreement, possible sentencing consequences, and any other important effects specific to the case. A plea decision should not be rushed or made based on an assumption that every case follows the same path. For a closer look at the decision, read what a plea deal in California means and what to consider.
Representing you at hearings, arraignments, and trial
A criminal defense attorney represents a client at court proceedings and helps the client prepare for what will happen there. The exact sequence varies by case. An arraignment, for example, is an early court appearance at which charges are addressed and the court considers procedural matters. Later hearings may address evidence, motions, or case scheduling. Counsel can explain the purpose of each appearance, what the client is expected to do, and what decisions may arise.
Before a court date, the attorney may review the expected agenda with the client, explain whether the client must attend, and identify documents or information to bring. The client should confirm the date, time, location, and any instructions directly with counsel. If an emergency or other problem could affect attendance, contact the attorney immediately rather than assuming the court will excuse an absence. Missing a court appearance or misunderstanding an order can create additional problems, so prompt clarification matters.
At hearings, the attorney may present arguments, respond to the prosecution, question witnesses when permitted, and address the issue before the court. Some appearances are brief and focused on scheduling; others require evidence or more detailed argument. Counsel can help the client distinguish what is being decided that day from what remains for later. A hearing about one procedural issue, for example, does not necessarily determine whether the person is guilty or how the entire case will end.
If a case goes to trial, defense counsel challenges the prosecution’s evidence, questions witnesses, presents appropriate evidence and arguments, and protects the client’s rights throughout the proceeding. Trial preparation can involve organizing records, preparing to question witnesses, evaluating legal instructions, and developing a clear way to present the defense. The American Public University overview also describes a criminal lawyer’s role in representing a defendant during trial proceedings; the specific duties depend on the case and applicable law. Read an overview of criminal lawyers and trial representation. A trial is not the right or likely path in every case; the decision to proceed depends on informed advice and the client’s choice after considering the circumstances.
Preparation may include discussing how to answer questions, what courtroom procedures may feel unfamiliar, and how to communicate with counsel during a proceeding. A client should tell the attorney if a witness, document, or event is being overlooked, but should not contact witnesses about their testimony or try to influence what anyone says. Counsel can advise on appropriate communication and evidence handling. During a trial, the attorney’s work may change as testimony and rulings unfold; that is one reason a defense strategy is based on the record and may need to adapt.
Representation also means helping a client navigate the practical parts of the process. Counsel can clarify court instructions and explain what to expect next, but clients should not ignore court dates or conditions. If something changes or a court instruction is unclear, ask the attorney promptly rather than guessing.
StageWhat the attorney may doWhat the client can doEarly case reviewExplain the accusation, review available information, and identify immediate legal questions.Share accurate information, preserve relevant records, and ask what deadlines or instructions apply.Investigation and pretrial workReview discovery, investigate relevant facts, evaluate motions, and prepare for hearings.Provide requested information and discuss questions or concerns before decisions are made.NegotiationsAssess and communicate proposals, explain risks, and advise about possible resolutions.Ask about terms and consequences, then make an informed choice.Hearing or trialRepresent the client, present legal arguments, and challenge evidence as appropriate.Follow court instructions and stay in communication with counsel.
Guiding you through the human side of a criminal case
A criminal case can affect a person’s work, family responsibilities, housing, education, and sense of safety. A defense attorney’s role includes explaining the process in plain language and making room for the client’s questions, while keeping the legal issues in focus. Clients should be able to discuss relevant facts honestly, including difficult or personal circumstances, so counsel can give informed advice.
At Jenica Leonard Legal, the approach is personalized, trauma-informed, and addiction-aware. Each person’s circumstances are different, and those circumstances may matter when counsel evaluates the case and discusses options. If substance use or recovery is part of the situation, share what you are comfortable discussing with your attorney. It may help the attorney understand the context and consider whether relevant records or other information should be addressed. This does not change the legal standard or guarantee a particular result.
It is also reasonable to ask how sensitive information will be used in the case and whether a particular detail is legally relevant. The attorney needs an honest account to give informed advice, but not every personal detail will belong in a court filing or negotiation. Counsel can discuss whether sharing a record or other information could help, create privacy concerns, or require additional context. Do not assume that a personal history will automatically improve a legal outcome; its relevance depends on the case and the legal issue involved.
Communication can be easier when the client prepares questions and shares information in an organized way. Consider keeping a simple timeline of important events, court dates, and communications. Separate what you personally saw or heard from what someone else told you, and note when you are uncertain about a detail. This helps avoid treating a guess as a fact and gives counsel a clearer starting point for follow-up. If the case is causing stress, tell the attorney what kind of explanation or update would help you understand the next step.
People facing criminal accusations in Santa Rosa and the broader North Bay—including Sonoma, Napa, Mendocino, and Marin counties—may have questions that depend on local procedure and the details of their case. The firm’s criminal defense practice focuses on representing people facing criminal charges. General information online cannot determine what should happen in an individual matter.
Why the attorney-client relationship matters to your outcome
Effective representation depends on communication and trust. Your attorney needs a complete and truthful account to evaluate the facts, while you need clear explanations to make informed choices. Ask questions when something is unclear. It is reasonable to ask what the next court date is for, what information is still needed, what options are being considered, and what decisions belong to you.
A direct, consistent relationship can make it easier to share concerns and understand how the case is progressing. Jenica Leonard Legal is a solo practice, and its service philosophy emphasizes a personalized attorney-client relationship. That does not mean every case has the same strategy or timeline. It means the work should respond to the particular facts, legal issues, and needs involved.
Clients can also help maintain a productive relationship by responding to requests, updating counsel when contact information changes, and asking before taking steps that could affect the case. Keep copies of court notices and send them to the attorney promptly. If you receive a call, letter, or message related to the matter, ask counsel how to respond. Do not assume that a short message or casual conversation is insignificant. At the same time, if you do not understand why information is needed, ask for an explanation rather than leaving a request unanswered.
To prepare for an initial conversation, consider writing down:
The date and circumstances of the incident, as best you remember them.
Any court papers, notices, or deadlines you have received.
Names of potential witnesses and where relevant records might be found.
Your questions about the process and the concerns most important to you.
You do not need to solve the case or know the legal terminology before you speak with an attorney. Bring what you have, say what you are unsure about, and ask which next steps matter first. If a document is missing, explain that instead of delaying a conversation while trying to locate every item. An initial discussion can help identify urgent issues and the information that may be useful to gather later.
Do not alter or destroy potential evidence, and do not assume that a social media post or message is private. Ask an attorney how to handle records and communications in your specific situation. Avoid discussing sensitive case details publicly or with people who are not part of your legal team; if you have already done so, tell counsel what happened and ask for guidance. A lawyer can explain how to preserve relevant material and how to avoid creating additional confusion.
Frequently asked questions about what a criminal defense attorney does
Does a criminal defense attorney only help if my case goes to trial?
No. Much of the work can happen before trial, including reviewing evidence, investigating relevant facts, advising on legal options, filing appropriate motions, and appearing at hearings. Some cases resolve without a trial; others proceed further. The right approach depends on the facts and the client’s informed decisions.
Will my attorney decide whether I accept a plea offer?
No. The attorney should explain the offer, the rights involved, and possible consequences, and provide advice. The client makes the decision whether to accept or reject a plea offer after considering that advice.
What should I bring to an initial consultation?
Bring any court documents or notices you have, a clear account of what happened, relevant contact information, and a list of questions. If you are unsure whether a record matters, ask before assuming it is irrelevant. Do not delay following an existing court instruction while preparing for a consultation.
Can an attorney guarantee that charges will be dismissed?
No responsible attorney can guarantee a particular result. An attorney can review the case, explain possible options and risks, and advocate for you. Outcomes depend on the law, the evidence, court decisions, and other facts specific to the case.
Contact the firm to discuss your situation
A criminal defense attorney’s job is to help you understand the case, protect your rights, and make informed decisions at each stage. This article provides general information, not legal advice; an attorney must review the facts of an individual matter before offering advice about it.
