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San Diego Homeland Security Lawyer

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This page was written, edited, reviewed & approved by Karren Kenney following our comprehensive editorial guidelines Karren Kenney, the Founding Partner, has 30+ years of legal experience as a criminal defense attorney.

by Karren Kenney / Last Updated: August 18, 2025

Introduction to Homeland Security

Homeland security is a vital pillar of the United States’ national security framework, designed to safeguard the nation from a wide array of domestic and international threats. At the forefront of this effort is the Department of Homeland Security (DHS), which is tasked with enforcing homeland security laws and coordinating the activities of various federal agencies. The DHS works in close partnership with the Federal Emergency Management Agency (FEMA), the Transportation Security Administration (TSA), and Customs and Border Protection (CBP) to ensure the safety and resilience of the country’s people, infrastructure, and borders. The homeland security sector is characterized by its complexity and constant evolution, as new threats and challenges emerge. Navigating this landscape requires specialized legal advice, as the laws and regulations governing homeland security, transportation security, and border protection are intricate and frequently updated. For individuals and organizations in San Diego and beyond, understanding the role of federal agencies and the importance of compliance is essential to maintaining national security and protecting their interests.

A homeland security attorney plays a crucial role in helping clients navigate the complex legal and regulatory landscape of homeland security.

What is a Department of Homeland Security Investigation?

Homeland Security was established in response to the 9/11 terrorist attacks, with a mission to enhance national security and prevent future threats.

Border security is a key component of the Department of Homeland Security’s efforts to protect the nation from terrorist threats and ensure national safety.

A special agent with Homeland Security is responsible for conducting investigations into a variety of crimes. These crimes include but are not limited to the following:

  • Threats to National Security and Public Safety
  • Human Trafficking and Smuggling
  • Drug Smuggling
  • Counter-Proliferation Investigations
  • Gang Investigations
  • Financial and Money-Laundering Crimes
  • Customs and Trade Fraud
  • Immigration Fraud
  • Cyber and Child Exploitation Crimes

Homeland Security investigates a broad range of offenses, covering many types of fraud and criminal activity beyond those listed above.

Typically, a Homeland Security Investigation is conducted by Agents who handle cases involving money laundering, fraud investigations, counter proliferation investigations, cyber investigations, narcotics, immigration and nationality act violations. When handling money-laundering cases, agents typically identify, track, interrupt and deconstruct the criminal organization(s) that launder the money. Agents also target and dismantle the practices of parties who trade illicitly in fraud investigations. Fraud investigations can include cases involving fraudulent medical equipment, such as PPE and other supplies, especially during public health emergencies. In counter-proliferation investigations, agents investigate trafficking in a variety of different cases such as arms deals, drug deals, potential nuclear weapon, biological weapon deals, and chemical weapon deals. In terms of cyber investigations, Homeland Security Investigations can include anyone using the Internet as an interface to commit crimes. The Cybersecurity and Infrastructure Security Agency (CISA) also plays a key role in investigating cyber threats, including phishing, malware, ransomware, and protecting both government and private sector networks in collaboration with law enforcement. Agents have the ability to use intelligence to investigate narcotics smuggling enterprises in order to control the amount of drugs entering the United States.

Joint investigations

There are many situations in which Homeland Security and their agents will collaborate with the FBI or the IRS and in some cases with federal task forces using local police departments. These collaborations are often coordinated by the federal government, which plays a central role in organizing multi-agency investigations involving federal agencies such as DHS and other departments responsible for national security, immigration, and transportation security. When different agencies’ cases interact or when they require the assistance of another agency or their resources in order to further investigate a case, the agencies may team-up.

If this were to happen, having an attorney who is well versed in both State and Federal Court would be immensely helpful, as they would have the prior knowledge to make sure that the investigating agencies do not overstep their boundaries when it comes to questioning you, searches and seizures, and other aspects of your case. In cases where there is more than one agency involved having an attorney is even more important because each agency can question you in relation to the case and they can each execute search warrants so the chances that you get taken advantage of increase exponentially. In this situation, an attorney would be able to guide you through the process and protect you from any harassment or improper investigation from the investigating agencies. Senior attorneys with experience in handling complex, multi-agency federal investigations are especially valuable in these scenarios, as they are equipped to manage high-stakes cases and negotiations involving the federal government. A criminal defense attorney with experience in homeland security cases can provide critical guidance and protection during these multi-agency investigations.

Local and Federal Agencies in Homeland Security

Due to the fact that Homeland Security Investigation agents can collaborate with other agencies both on the State and Federal level, you may be charged with crimes at each of these levels. Investigations can also involve department personnel through internal investigations, especially in cases of internal corruption, bribery, or the misuse of government funds. Navigating criminal charges in State Court and in Federal Court are different because Federal Court usually has the charges with the higher prison sentences. Most attorneys have extensive experience in State Court but fall short on experience in Federal Court. In a situation where you have charges in Federal Court it is pertinent that you find an attorney who has experience in Federal Court because it is in your best interest to protect yourself as best you can from facing serious time in Federal Prison. Additionally, understanding the role of the general counsel, who oversees legal matters and provides guidance within the Department of Homeland Security, is crucial for attorneys handling these cases.

Practice Areas

At our law firm, we offer comprehensive legal services and legal representation across the full spectrum of homeland security matters, ensuring our clients receive the specialized legal advice and representation they need in this highly regulated and rapidly evolving field. Our experienced attorneys are well-versed in the complexities of homeland security laws and work closely with federal agencies and component agencies to protect your interests. We also have significant experience representing clients in navigating regulations within both homeland security and human services sectors.

  • Homeland Security Law: We provide expert legal counsel on all aspects of homeland security laws, helping clients understand and comply with the intricate regulations and policies set forth by the Department of Homeland Security and its component agencies. Our team stays current on legislative changes and emerging issues in the homeland security sector to offer the most effective guidance possible.
  • Immigration Services: Navigating the U.S. immigration system can be daunting. Our attorneys assist clients with visa applications, removal proceedings, and immigration litigation, working directly with agencies such as U.S. Citizenship and Immigration Services (USCIS) and Immigration and Customs Enforcement (ICE). We are dedicated to protecting your rights and achieving the best possible outcome in every immigration matter.
  • Transportation Security: Security at airports, seaports, and border crossings is critical to national safety. Our firm has significant experience handling legal issues related to the Transportation Security Administration (TSA) and the protection of critical infrastructure. We advise clients on compliance, regulatory hurdles, and best practices for maintaining transportation security.
  • Federal Emergency Management Agency (FEMA): When disaster strikes, understanding the legal framework for emergency response and recovery is essential. We guide clients through FEMA regulations, assist with disaster relief claims, and help navigate the complexities of federal emergency management, ensuring compliance and effective use of government resources.
  • Customs Enforcement: Our attorneys represent clients in customs enforcement matters, including seizures, forfeitures, and penalties. We provide guidance on compliance with customs regulations and laws, and work to resolve disputes with U.S. Customs and Border Protection (CBP) efficiently and effectively.
  • Border Protection: Protecting the nation’s borders involves a unique set of legal challenges. We offer specialized legal advice on border protection issues, including cross-border crime, customs enforcement, and regulatory compliance, ensuring our clients are prepared to address any issues that arise at the border.
  • National Security Law: Our firm is equipped to handle complex national security law matters, including cases involving terrorism, cyber attacks, and the safeguarding of critical infrastructure. We collaborate with the Department of Homeland Security, Department of Justice, and other federal agencies to provide robust legal support in this vital area.
  • Immigration Litigation: We represent clients in all types of immigration litigation, from removal proceedings to asylum applications and appeals. Our attorneys are skilled in the latest developments in immigration law and policy, providing strong advocacy and strategic guidance throughout the litigation process.
  • Government Contracts: Securing and managing government contracts, especially those related to homeland security and defense, requires in-depth knowledge of federal procurement law. We assist clients with contract negotiations, compliance, and dispute resolution, helping them navigate the complexities of working with federal agencies.
  • Regulatory Affairs: Staying compliant with the ever-changing landscape of homeland security regulations is crucial. Our team offers expert advice on regulatory affairs, working with the Department of Homeland Security, Federal Emergency Management Agency, and other federal agencies to ensure our clients meet all legal requirements.

Our commitment to excellence means we are always up-to-date on the latest developments in homeland security law and policy. Whether you are an individual, business, or government entity, our law firm is dedicated to providing the highest level of legal services and specialized legal advice to help you navigate the challenges of the homeland security sector.

National Security and Legal Counsel

The Department of Homeland Security (DHS) is at the heart of the nation’s efforts to protect against evolving threats, and its legal counsel is essential in guiding the department’s actions within the framework of homeland security laws. The Office of the General Counsel serves as the principal legal advisor to the Secretary of Homeland Security, offering specialized legal advice on a broad range of issues, from immigration services and customs enforcement to transportation security and regulatory affairs. This office ensures that all departmental actions comply with the Homeland Security Act and other key legislation, while also safeguarding civil liberties and upholding national security. In the realm of national security law, legal counsel must carefully balance the imperative to prevent terrorist attacks and cross-border crime with the protection of individual rights. By providing expert guidance on complex legal and regulatory matters, the general counsel helps DHS navigate the challenges of a rapidly changing security landscape, ensuring that the department’s mission is carried out lawfully and effectively.

Types of Cases Handled

Homeland security attorneys handle a diverse range of cases that reflect the broad scope of the homeland security sector. These cases often involve immigration services, such as removal proceedings, immigration litigation, and defense against allegations of illegal immigration or human trafficking. Attorneys in this field also provide legal counsel on matters related to border protection, including cross-border crime and customs enforcement. In addition to criminal defense, homeland security attorneys may advise clients on government contracts, regulatory affairs, and compliance with federal agencies’ requirements. Cases involving the Federal Tort Claims Act, employment law, and equal employment opportunity are also common, particularly when federal employees or government actions are involved. The DHS Honors Attorney Program offers recent law school graduates a unique opportunity to work on complex cases in areas such as national security, federal tort claims, and regulatory compliance, helping to shape the next generation of legal professionals in this critical field. Whether representing individuals, businesses, or government entities, homeland security attorneys play a crucial role in addressing the legal challenges that arise in this dynamic and high-stakes sector.

DHS Fraud Defense

Defending against allegations of fraud within the Department of Homeland Security is a highly specialized area that requires the expertise of senior attorneys well-versed in homeland security law. DHS investigates a wide spectrum of fraud-related offenses, including bribery, embezzlement, and contract fraud, which can carry severe penalties for individuals and businesses. Senior attorneys with experience in DHS fraud defense are adept at guiding clients through the intricate legal processes, developing robust defense strategies, and ensuring their rights are protected throughout the investigation and litigation stages. The DHS Honors Attorney Program is a prestigious pathway for recent law school graduates to gain hands-on experience in this field, serving as associate legal advisors and providing legal advice on matters such as immigration litigation and federal tort claims. These attorneys play a vital role in supporting the department’s mission while upholding the principles of justice and due process.

Homeland Security Legislation

Homeland security legislation forms the backbone of the legal framework that governs the Department of Homeland Security and its component agencies. The Homeland Security Act established the department and continues to shape its authority, while subsequent laws such as the Safe Port Act, Border Protection Act, and Federal Tort Claims Act have expanded and refined its mandate. Senior attorneys specializing in homeland security law must stay abreast of these legislative developments to provide effective legal counsel and ensure compliance with all applicable statutes. Legal counsel within the department is instrumental in interpreting and implementing these laws, advising on regulatory affairs, and ensuring that DHS actions align with both the letter and spirit of the law. By remaining current on legislative changes, senior attorneys help clients and the department navigate the complexities of border protection, federal tort claims, and other critical areas of homeland security.

Senior Attorneys and Their Role

Senior attorneys are indispensable to the Department of Homeland Security, offering specialized legal advice and representation across a wide array of issues. As chief counsel or associate legal advisors, these experienced professionals provide legal counsel to DHS component agencies such as Customs and Border Protection, Immigration and Customs Enforcement, and the Transportation Security Administration. Their expertise spans transportation security, customs enforcement, border protection, and regulatory affairs, ensuring that each agency operates within the bounds of homeland security law. Senior attorneys are also responsible for interpreting new regulations, advising on compliance, and representing the department in complex legal matters. Their deep understanding of the legal landscape and ability to provide strategic guidance make them essential to the effective functioning of the homeland security sector.

Defense Strategies

Developing effective defense strategies in homeland security cases requires a thorough understanding of the relevant laws, regulations, and the intricate network of federal and component agencies involved. Homeland security attorneys must be adept at providing specialized legal advice tailored to the unique circumstances of each case, whether it involves criminal charges, regulatory compliance, or civil litigation. Senior attorneys with experience in the homeland security sector are particularly valuable, as they can anticipate the tactics used by federal agencies and craft comprehensive defense strategies that protect clients’ rights and interests. This may include challenging the legality of investigations, negotiating with multiple agencies, and ensuring that all procedural safeguards are observed. By leveraging their knowledge of the homeland security landscape and their relationships with key agencies, experienced attorneys can provide the guidance and representation necessary to navigate even the most complex legal challenges.

Protecting Clients’ Rights and Interests

For individuals and businesses facing legal challenges in the homeland security sector, protecting their rights and interests is paramount. Senior attorneys with expertise in homeland security law are uniquely positioned to provide specialized legal advice and effective representation in matters such as immigration review, government contracts, and employment law. These attorneys are adept at navigating the federal government’s regulatory affairs, ensuring clients remain compliant while safeguarding their legal rights. Whether assisting with complex government contracts, defending against regulatory actions, or guiding clients through the intricacies of immigration review, senior attorneys leverage their knowledge and experience to achieve the best possible outcomes. By providing clear, strategic legal advice, they help clients avoid severe penalties and ensure their interests are protected in a challenging and dynamic legal environment.

Benefits of Hiring a San Diego Homeland Security Attorney

Engaging a San Diego homeland security attorney offers significant advantages for individuals and organizations facing legal issues in the homeland security sector. These attorneys possess in-depth knowledge of the specialized laws and regulations that govern homeland security, and are skilled at working with both federal agencies and component agencies. Their expertise allows them to provide clients with clear guidance on their rights, options, and the best course of action for their unique situation. A San Diego homeland security attorney can help clients develop a robust defense strategy, manage interactions with federal agencies, and ensure compliance with all applicable laws. By choosing an attorney with experience in the homeland security sector, clients benefit from tailored legal support that addresses the complexities of their case and maximizes their chances of a favorable outcome. Whether dealing with regulatory issues, criminal investigations, or civil claims, having a knowledgeable advocate on your side is essential for successfully navigating the challenges of the homeland security landscape.

Ready to fight for you!

If you or a loved one is facing a Homeland Security Investigation, you need an aggressive criminal defense lawyer on your side. With offices in Costa Mesa and San Diego, we serve people throughout Southern California. Call (855) 505-5588 or contact us online for a free initial phone consultation.

Karren Kenney
Criminal Defense Lawyer
Karren Kenney, a dedicated criminal defense attorney, is renowned for her unwavering commitment to defending her clients' rights and freedom. Her impressive track record in the courtroom speaks volumes about her expertise. Exclusively practicing state and federal criminal defense, Karren approaches each case with diligence, persistence, passion, and strong principles. As an experienced and assertive trial attorney, she prioritizes thorough case preparation to ensure the best possible defense for those she represents.

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