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Rolando Cantu is the founding attorney of the Law Office of Rolando D. Cantu. He is committed to providing aggressive and high level legal representation—successfully defending clients charged with state and federal criminal offenses. He works on every case as a priority with personal attention, while prioritizing their needs. 

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515 Pecan Blvd. McAllen,

Texas, United States 78501
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What Does a Criminal Defense Lawyer Do?

April 6, 2024

What Does a Criminal Defense Lawyer Do?

A criminal defense lawyer is, actually, a legal practitioner who deals with individuals and organizations that have been accused and are on trial for a criminal offense. They do not only hold the main responsibility of providing legal assistance and guiding their clients during the whole time of criminal prosecution. It starts from pre-trial investigations up to the final appeal cases.


When facing a criminal case, the crucial thing is how well you know and trust your attorney. These legal professionals have a pivotal role in guaranteeing that the rights of the accused are respected during the entire legal procedure. However, seemingly simple, what might a criminal defense attorney possibly do?. In this blog post, we will examine the varied tasks of these attorneys and their efforts to defend their clients through their advocacy.

  • The Core Responsibilities of a Criminal Defense Lawyer
  • Representing the Accused
  • Investigative Work
  • Legal Strategy Development
  • Courtroom Representation
  • How to Choose the Right Criminal Defense Attorney
  • When you Might Need a Criminal Defense Attorney
  • How Much Do Criminal Defense Lawyers Cost?
  • Specialized Areas of Practice
  • The Importance of a Criminal Defense Lawyer
  • McAllen Criminal Defense Lawyer Near You

The Core Responsibilities of a Criminal Defense Lawyer

Basically, criminal lawyers are experts who defend the people and the organizations that are indicted for committed criminal act. Whether chosen by a court for an indigent defendant or hired by an individual for defense, criminal attorneys are responsible for the core competencies of the defense process, exerting efforts to uphold their client's legal rights and achieve the most favorable outcomes. Here's an overview of their key responsibilities:

Representing the Accused

Each case typically starts with going through the charges and verdicts against the client, and the lawyer takes a close look at everything.


  • Legal Representation: This is where the lawyers approach here. They act as legal representatives either for the individuals or companies being accused of a crime and speak on their behalf for all the legal proceedings.
  • Client Advocacy: The primary job of the defense attorneys is to take the client's side and try to be assertive to give them the voice they need and also uphold their legal rights.

Investigative Work

Gathering of evidence, witness interviews, and choosing a defense strategy are the three crucial factors that make criminal investigation a work of precision.


  • Evidence Review: Attorneys depend on checks and balance, reviewing police documents, which way witnesses gave statements and also take into consideration forensic findings.
  • Witness Interviews: They either collect more information about testimonies or the defense may contradict the prosecution's presentations.

Legal Strategy Development

The attorney will be armed with the evidence and decide on a legal strategy that might be pushing for the dismissal, or negotiating for a plea deal or preparing for the trial.


  • Building a Defense: Their own investigation outcomes inform a defunct strategy which considers all the crucial issues.
  • Plea Negotiations:  If needed they bargain with prosecutors during plea negotiations and are in their pursuit to reduce charges and secure lesser sentences.

Courtroom Representation

In the event of a trial, the defense lawyer represents and defends their client in court, presenting evidence, cross-examining witnesses, and arguing before a judge or jury.


  • Trial Preparation: Preparing for trial involves strategizing, gathering evidentiary support, and planning defense arguments.
  • Court Appearances: They represent and defend the client in court, presenting evidence, cross-examining witnesses, and arguing on behalf of the accused.


Related: 8 Steps in a Criminal Case

How to Choose the Right Criminal Defense Attorney

When it comes to choosing a criminal defense attorney, there are a few key factors to consider:


  • Experience: It is very important that you do pick a lawyer who has a great deal of experience in cases such as yours.
  • Reputation: Look for an attorney with an established reputation of providing high quality lawfulness and achieving beneficial outcomes.
  • Communication Skills: A very important part of your legal representation is effective communication that you may have with your lawyer, thus picking one who listens carefully, explains things well and updates you always.
  • Trust: You should have the ability to trust your lawyer with confidential information and rely on them to give you sound legal advice.
  • Cost: Criminal defense attorneys can be costly, so it’s important to agree on fees beforehand and ensure that you are okay with the cost.

When you Might Need a Criminal Defense Attorney

A criminal defense lawyer may be necessary in a variety of situations, including:


  • Charged with a Crime: If you are caught in a criminal case situation, get legal aid immediately.
  • Investigation or Arrest: Although you have not been charged yet, having a lawyer as part of your legal team will not only help to protect your rights but also may prevent actions that would have otherwise led to charges being filed.
  • Bail or Bond Hearing: In case you have a bond or bail hearing, the experienced criminal defense attorney will help you to prepare for the argument and get a lower amount and will also guide you on how to secure your release.
  • Negotiating Plea Deals:  Sometimes, a plea deal could be the greatest option for you which you can negotiate with the prosecution. Criminal defense attorneys often can plead for a fair deal and help you to comprehend the potential outcomes of your deciding to accept it.
  • Trial Representation: Getting the right criminal defense lawyer from the very onset of your case will be crucial if you are headed for trial. An experienced defense attorney will give you the best chances at success.
  • Appeals & Post-Conviction Relief: Even after a conviction, a good criminal defense attorney can continue to fight for their client’s rights by filing appeals or seeking post-conviction relief.


Learn more: How a criminal defense lawyer can help you

How Much Do Criminal Defense Lawyers Cost?

The cost of a criminal defense lawyer can vary greatly depending on factors such as the complexity of the case, the attorney’s experience and reputation, and the location of the trial.


In some cases, criminal defense attorneys may charge a flat fee for certain services, such as representing a client at a bail hearing or negotiating a plea deal. Private criminal defense attorneys may also charge an hourly rate, which can range from a few hundred dollars to several thousand dollars depending on the attorney’s experience and reputation. Many people choose to hire a private criminal defense attorney because they believe that having the best representation can greatly impact the outcome of their case.


However, there are also options for individuals who cannot afford to hire a private criminal defense attorney. Public defenders are court-appointed attorneys who provide legal representation to those who cannot afford to hire their own attorney.


Some criminal defense attorneys may also offer pro bono services for clients who cannot afford to pay for legal representation. It is important to discuss fees and payment options with your attorney before hiring them to ensure you understand and are comfortable with the cost.

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Regardless of the cost, it is crucial to have a skilled and experienced criminal defense attorney on your side when facing criminal charges. They can help navigate the criminal justice system, protect your rights, and work towards achieving the best possible outcome for your case.

Specialized Areas of Practice

Criminal law encompasses a wide array of offenses, leading some attorneys to specialize in specific areas such as:

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  • DUI/DWI offenses
  • Drug-related crimes
  • Violent crimes, including assault and murder
  • White-collar crimes

The Importance of a Criminal Defense Lawyer

Having a criminal defense lawyer is not just a legal right—it's a critical component of a fair trial. These attorneys ensure that the accused receive a competent defense, possibly preventing innocent individuals from wrongful convictions and helping to ensure that penalties are fair and just. Whether negotiating plea bargains, investigating cases, or representing clients in court, criminal defense lawyers play an indispensable role in the justice system.

McAllen Criminal Defense Lawyer Near You

In conclusion, the role of a criminal defense lawyer is complex and multifaceted. From investigating cases and developing defense strategies to representing clients in court, these legal professionals are essential advocates for the accused. If you or someone you know is facing criminal charges, understanding the invaluable support a criminal defense attorney provides is the first step toward navigating the legal system effectively.


If you or a loved one is facing criminal charges, it's crucial to have an experienced and knowledgeable criminal defense lawyer by your side. At our law firm, we are dedicated to providing top-notch representation for those accused of crimes in the McAllen area. Contact us today to schedule a consultation and learn more about how we can help defend your rights and freedoms.

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