Most international travelers expect some level of scrutiny when entering the United States. Customs inspections, passport checks, and secondary screening are common parts of the process. What many people do not realize is that a routine border inspection can become the foundation of a federal criminal investigation.
A traveler may leave the airport without being arrested, charged, or even told that a criminal inquiry is underway. Weeks or months later, that same individual may receive a call from a federal agent, a subpoena for records, or notice that investigators are examining activities discovered during the inspection.
We regularly speak with individuals throughout South Florida who are surprised to learn that information uncovered during a customs inspection at Miami International Airport, Fort Lauderdale-Hollywood International Airport, Palm Beach International Airport, Port Miami, or Port Everglades has triggered a broader federal investigation.
Understanding how this process works is important for anyone who travels internationally.
What Begins as a Routine Inspection?
Every day, Customs and Border Protection officers conduct inspections of individuals entering the United States.
These inspections may include:
Passport verification
Immigration review
Customs declarations
Luggage searches
Electronic device inspections
Phone searches
Secondary questioning
Most travelers complete the process without incident.
CBP officers are tasked with enforcing customs laws, immigration laws, and border security regulations. During the course of those duties, officers often encounter information that extends beyond routine travel concerns.
When that occurs, the nature of the inspection can change quickly.
What Authority Allows CBP to Conduct These Searches?
Federal courts have long recognized what is known as the Border Search Exception.
Under this doctrine, government officials have broader authority to inspect persons and property entering the United States than they would ordinarily possess away from the border.
According to the U.S. Customs and Border Protection Electronic Device Search Policy, CBP officers may conduct searches of electronic devices encountered at ports of entry under certain circumstances.
This authority often allows officers to identify information that may warrant further investigation by federal law enforcement agencies.
When Does a Border Search Become a Criminal Investigation?
There is no single event that transforms a customs inspection into a criminal case.
Instead, the transition typically occurs when officers discover information suggesting a violation of federal or state criminal law.
Examples include:
Evidence of drug trafficking
Fraudulent financial activity
Money laundering schemes
Human trafficking indicators
Firearms offenses
Child exploitation material (CSAM)
Conspiracy communications
Evidence of organized criminal activity
When officers encounter information that raises concerns, they often preserve evidence and notify investigative agencies. This often occurs by confiscating phones and laptops which may contain this evidence.
At that point, the matter begins moving beyond customs enforcement and into criminal investigation territory.
What Types of Evidence Trigger Criminal Investigations?
The most common source of evidence today is electronic data.
Modern smartphones contain extensive information about a person's activities, communications, finances, travel history, and associations.
Investigators may review:
Text messages
Emails
Photographs
Videos
Cloud storage accounts
Social media communications
Financial records
Contact information
A single communication discovered during an inspection may lead investigators to pursue additional records, interviews, or search warrants.
The initial discovery is often only the beginning.
Which Federal Agencies Become Involved?
Once criminal concerns emerge, CBP frequently works alongside other agencies.
Homeland Security Investigations (HSI)
HSI is one of the agencies most commonly involved in border-related criminal investigations.
HSI investigates:
Human trafficking
Child exploitation
Financial crimes
Transnational criminal organizations
Immigration-related offenses
Many device seizures at ports of entry ultimately result in HSI involvement.
Federal Bureau of Investigation (FBI)
The FBI may become involved when evidence suggests:
Public corruption
Organized crime
Cybercrime
National security threats
Complex conspiracy offenses
The FBI frequently works with other federal agencies when investigations expand.
Drug Enforcement Administration (DEA)
Drug-related evidence discovered during a customs inspection may trigger DEA involvement.
The agency investigates:
Drug trafficking organizations
International narcotics operations
Distribution networks
Drug-related conspiracies
United States Attorney's Office
Federal prosecutors evaluate evidence gathered by investigative agencies and determine whether criminal charges should be filed.
Prosecutors often become involved long before an arrest occurs. Often prosecutors are monitoring your whereabouts and use preplanned travel as a means to do a search with less hurdles since you have less protections at the border.
Can State Prosecutors Become Involved?
Yes.
Not every matter discovered during a customs inspection remains exclusively federal.
In some situations, evidence uncovered by federal authorities may be shared with state or local law enforcement agencies.
This can lead to:
Florida criminal charges
State-level investigations
Joint federal and state enforcement efforts
The specific jurisdiction often depends on the nature of the alleged conduct and which laws were potentially violated.
What Happens After Investigators Become Involved?
Many travelers assume that if they are allowed to leave the airport, the matter is over.
That assumption is often incorrect.
Investigators frequently continue their work after the traveler departs.
The next stage may include:
Reviewing electronic evidence
Issuing subpoenas
Interviewing witnesses
Analyzing financial records
Obtaining search warrants
Coordinating with prosecutors
These activities may continue for months before the target of the investigation is contacted.
This delay often creates a false sense of security.
What Are Signs That an Investigation Is Underway?
Some indicators include:
A seized electronic device
Contact from federal agents
Requests for interviews
Subpoenas for records
Search warrants involving associates
Questions directed to family members or coworkers
Not every investigative step is visible.
Federal agencies often conduct extensive inquiries before making direct contact.
Should You Speak With Investigators?
Many individuals believe they can resolve concerns by explaining the situation themselves.
That approach frequently creates additional problems.
Federal investigators are trained interviewers. Statements made during an interview may later become evidence in a criminal proceeding.
Before speaking with investigators, individuals should understand:
The purpose of the interview
Whether they are a witness, subject, or target
The potential legal consequences of their statements
Obtaining legal guidance before participating in an interview is often advisable. My advice is to not speak with law enforcement unless an attorney is present for this conversation.
What If No Charges Have Been Filed?
The absence of charges does not necessarily mean the investigation has ended.
Federal investigations often proceed in stages.
A person may be:
A witness today
A subject tomorrow
A target later
Because federal investigations frequently develop over extended periods, early legal analysis can be valuable even before formal charges are filed.
We often help clients evaluate their circumstances long before an indictment occurs.
How Can a Criminal Defense Attorney Help During an Investigation?
The most effective time to begin evaluating a case is often before charges are filed.
When we become involved early, we can:
Analyze the circumstances of the search
Evaluate constitutional issues
Communicate with investigators when appropriate
Review potential exposure
Identify defense strategies
Protect the client's rights throughout the process
Waiting until an arrest occurs may limit available options.
When Should You Contact an Attorney?
You should consider speaking with counsel if:
CBP seizes your phone
Federal agents request an interview
You receive a subpoena
Another agency contacts you
You believe evidence discovered during a border inspection may lead to further scrutiny
At Lindsay Chase Law, we represent individuals facing federal criminal investigations throughout South Florida. We understand how quickly a routine customs inspection can evolve into a serious legal matter involving multiple federal agencies and prosecutors.
Understanding the scope of an investigation early often places individuals in a stronger position to protect their rights and make informed decisions moving forward.
