Federal Drug Conspiracies vs Possession with Intent to Distribute in San Antonio:  What’s the difference?

Facing federal drug charges in San Antonio?  Experienced San Antonio federal drug attorney Genaro R. Cortez gives you a two part outline of what to expect in your case.  In Part 1, he will show you how federal prosecutors use conspiracy and possession with intent to distribute charges to target suspected drug dealers.  In addition, he will explain key legal concepts that can help or hurt your case. 

In Part 2, he will show you how federal sentencing works in San Antonio federal drug cases.  This includes showing you options on how to lower your jail time in drug case.  Finally, he will show you how a plea deal can go bad and how to deal with this problem when it comes up.

📋 Looking for a Federal Drug Defense Attorney in San Antonio?

This guide explains how federal drug conspiracy and possession charges work. For a complete overview of our federal drug defense practice — including all charges we handle, key defenses, and how to get started — visit our San Antonio Federal Drug Defense practice page. Ready to talk? Call (210) 733-7575 for a free consultation.

Why are there so many Federal Drug Crimes in San Antonio?

San Antonio is a major hub for drug crimes because it connects to drug corridors like I-35, I-10, and Hwy 90.  Namely, drugs and contraband pass from border towns like Del Rio, Eagle Pass, and Laredo through San Antonio.  Consequently, police arrest people who either drive through San Antonio with a large amount of drugs or set up drug labs or networks in the area.  

When this happens, prosecutors often file two specific charges:  (1) conspiracy to distribute drugs under 21 USC § 846; and (2) possession with intent to distribute drugs under 21 USC § 841.  These are two related but distinct drug crimes.  Equally important, they present different challenges and opportunities for federal defense attorneys in San Antonio.

What is a Federal Drug Conspiracy Charge under 21 USC § 846?

21 USC § 846 makes it a crime for anyone to conspire with someone else to commit a violation of certain controlled substances laws of the United States.  Furthermore, a conspiracy is an agreement between two or more persons to join together to accomplish some unlawful purpose.  It is a kind of “partnership in crime” in which each member becomes the agent of every other member.

In plain English, a 21 USC § 846 conspiracy is a deal between two or more people to distribute drugs.  The main feature of this law is its agreement requirement.  In other words, federal law prevents people from entering into a criminal agreement to deal drugs.

What are the three facts a Prosecutor must prove to convict you on a drug conspiracy charge?

The prosecutors must prove these three facts:

  1. Two or more people, directly or indirectly, reached an agreement to violate federal drug laws;
  2. The defendant knew of the unlawful purpose of the agreement; and
  3. The defendant joined the agreement willfully, that is, with the intent to further its unlawful purpose.  See United States v. Bourrage, 138 F.4th 327, 348 (5th Cir. 2025). 

If a prosecutor can prove these key facts beyond a reasonable doubt to a jury, then the jury will find you guilty. 

Does 21 USC § 846 require the government to prove an “overt act” in order to find me guilty of a federal drug conspiracy?

No.  An overt act is any step – even a small one – done by a person to carry out the crime.    An example of an overt act is moving drugs from one point to another.  Another example is carrying the cash from a drug sale to a stash house.  

21 USC § 846 does not require you to do this type of observable conduct to break the law.  Instead, the government only has to show that you intentionally joined the criminal agreement.  This is a big departure from general conspiracy law, which requires the government to prove someone in the conspiracy took steps to make the crime happen.  See United States v. Shabani, 513 U.S. 10, 11 (1994).

What are 4 possible defenses to a 21 USC § 846 charge?

  1. No knowledge or intent to join the conspiracy:  This is perhaps the most common defense to a federal drug conspiracy charge in the Western District of Texas.  Simply stated, the federal criminal defense attorney shows that the defendant did not know about the illegal agreement to deal drugs.  In addition, his attorney shows the person did not join the conspiracy. 

    Interestingly, a person is not guilty of a federal drug conspiracy if he does not know about the drug conspiracy.  This is true even if he acts in a way that advances some purpose of the conspiracy.
  2. Mere presence at the scene of an event:  If you were simply at the wrong place at the wrong time, this may be a defense to a federal drug conspiracy.  The Fifth Circuit Pattern Jury Instructions state that the “[m]ere presence at the scene of an event, even with knowledge that a crime is being committed, or the mere fact that certain persons may have associated with each other and may have assembled together and discussed common aims and interests, does not necessarily establish proof of the existence of a conspiracy.” (Emphasis added.)

    This scenario happens when police raid a home, office, or warehouse and find drugs and lots of people present.  The mere fact that you are present when police show up and execute a search warrant does mean you were part of the drug conspiracy.
  3. Buyer-Seller Agreement:  This is an exception to a 21 USC § 846 charge.  The buyer-seller exception prevents a single drug buy, which is necessarily reached in every drug buy, from automatically becoming a conspiracy to distribute drugs.  See United States v. Delgado, 672 F.3d 320, 330 (5th Cir. 2012).  This rule protects street-level drug users from the more severe penalties reserved for major drug dealers.
  4. Motions to Suppress:  Federal law requires police to follow strict procedures.  Specifically, they need probable cause to arrest you, a warrant to search your phone, and they must read your Miranda rights before they question you after your arrest. 

    If they do not follow these rules, then your defense attorney can file a motion to suppress evidence.  In many cases, the prosecutors will still have enough evidence to move forward.  But suppression of evidence frequently weakens their case.  This can improve your odds of going to trial and winning or give you leverage to work out a more favorable plea deal.

Can you withdraw from a federal drug conspiracy in the Western District of Texas?

Yes.  Under federal law, a conspirator can withdraw from a 21 USC § 846 crime.  To do so, the person must tell the other co-conspirators clearly and explicitly that he is getting out of the deal.  And the person must stop engaging in the conspiracy.  

If the person does this, then he is still guilty of a crime.  However, his liability will end on the date he gets out.  This can become a possible statute of limitations defense if the government files their indictment late.

What is possession with intent to distribute under 21 USC § 841?

21 USC § 841 makes it a crime for anyone to knowingly or intentionally possess a controlled substance with intent to distribute it.  In addition, “intent to distribute” simply means to possess with intent to deliver or transfer possession of a controlled substance to another person, with or without any financial interest in the transaction.

This definition is important for two reasons:

  • The definition of “possession with intent to distribute” does not require the person to own the drugs; and
  • It does not require the person to make money during the transfer of the drugs.

What does possession mean in a drug crime?

There are two ways to be in possession of drugs. It can be either actual or constructive:

  • Actual Possession:  A person who knowingly has direct physical control over a thing, at a given time, is in actual possession of it.  However, mere touching or physical contact alone is insufficient by itself to establish possession.
  • Constructive Possession:  A person who, although not in actual possession, knowingly has both the power and the intention, to exercise dominion or control over a thing, either directly or through another person, is in constructive possession of it.  

The central points that bind the concepts of actual and constructive possession are that the person must have both knowledge and control of a controlled substance to be in possession of it. 

What are the elements of a Federal Possession with Intent to distribute crime (21 USC § 841)?

To convict you under 21 USC § 841, the government must prove:

  1. You knowingly possessed a controlled substance;
  2. The substance was in fact cocaine, heroin, meth, or other controlled substance;
  3. You possessed it with intent to distribute it to others; and

The amount or quantity of the drugs (this triggers the mandatory minimums in your case, i.e., 5 years or 10 years).

What are common defenses to a 21 USC § 841 drug crime in the Western District of Texas?

  1. No knowledge or Intent:  Federal drug conspiracies focus on the criminal agreement to deal drugs.  In contrast, drug possession crimes focus on having both knowledge and control over the drugs. 

    However, both of these crimes require the government to prove criminal intent.  With a conspiracy, they have to agree to join the illegal agreement.  With drug possession, the person must knowingly possess the drugs.

    An example shows how this idea works.  If you are a soccer mom and drive several kids to practice.  One of the kids forgets her school bag in your car.  If the kid’s school bag has a marijuana joint, then the soccer mom is in physical possession of the drugs. But she is not in legal possession because she did not know about it.
  2. No control over the drugs:  A person may be aware of the drugs, but have no control over the drugs.  Another example will help with this concept. 

    Assume you go to a house party of a friend who deals drugs.  The friend hides his drugs in a locked safe in his bedroom.  You do not have access to either the bedroom or the safe. 

    Under these circumstances, you are not in possession of the drugs even if you know he is a drug dealer because you have no control over the drugs.  In fact, under these types of circumstances, the Fifth Circuit allows you to ask for a “mere presence” jury instruction.

    This instruction tells the jury that being at the scene of a crime without knowledge or intent to commit a crime is not enough to find you guilty of a drug offense.
  3. Motion to Suppress: Drug possession cases in San Antonio often involve traffic stops, home searches, and cellphone searches.   As a result, your attorney should check to see if police had a reason to stop your car.  If they did not, then you can challenge the search of the car and ask the judge to throw out the evidence found in the illegal search. 

    On top of that, police always ask to search your cellphone in drug cases.  If you say yes, then you have consented to a search and the search is legal.

    But if they search your phone without either a warrant or your consent, then this makes it a bad search.  This is an important point because cellphones often contain text messages talking about drug deals and pin drops that show where to meet up to exchange or sell the drugs. 

    If prosecutors find this evidence on your phone, then they will use it to show that you knew about the drugs and had control over them. Thus, a jury can find you knowingly and intentionally possessed the drugs. Plus, this evidence can show you joined the conspiracy. 

What are 3 factors a prosecutor can use to show the person possessed drugs with the intent to distribute them?

These 3 factors help show a person possessed drugs with the intent to distribute them:

  1. The person had a large amount of drugs in his or her possession. In other words, having drug amounts that are more than just for personal use;
  2. The value and quality of the drugs is high; and
  3. Police find drug paraphernalia like digital scales, plastic baggies, or drug ledgers during their investigation.

What if the drugs are hidden inside a vehicle?

Police often find drugs hidden inside a car after a traffic stop on I-35, I-10, or Hwy 90.  When this happens, the Fifth Circuit has established special rules to deal with this situation:

  • Visible drugs: When drugs are in plain view, a jury may infer you knew the drugs were there;
  • Hidden compartments:  In contrast, if the drugs are in hidden compartments (false fuel tanks, secret panels, or inside a spare tire), then prosecutors need more evidence to show that you knew about the hidden compartment and the drugs.  This rule protects innocent drivers who are not aware that someone else hid drugs.  Otherwise, an innocent person can go to jail for a 21 USC § 841 crime.

The Bottom Line on San Antonio Federal Drug Charges.

Federal conspiracy and drug possession charges carry severe penalties, but they require different defense strategies.  Understanding which charge you face – or whether you face both – is the first step in mounting an effective defense.  

If you are facing federal drug charges in San Antonio, then the complex nature of these cases demand experienced legal representation.  Otherwise, you may miss key issues in your case that can lead to an unfairly high jail term.  

Do not face these charges alone.  Whether you are dealing with an arrest in San Antonio, a traffic stop along I-35, or an investigation involving wiretaps and multiple suspects, understanding your charges is a critical first step to protect your future.

Can you be charged with conspiracy if police did not find drugs?

Yes. Under 21 USC § 846, the government only needs to prove that a criminal agreement existed and that you joined it willfully. Because federal drug conspiracy does not require an “overt act,” you can be convicted even if police never seized physical drugs from you.

What is the “Buyer-Seller” exception in federal drug cases?

This is a defense used when the evidence only shows a single, isolated, low-amount drug transaction. The Fifth Circuit has ruled that a simple buyer-seller relationship does not automatically prove a conspiracy to distribute drugs, protecting street-level users from penalties meant for large-scale dealers.

Does “mere presence” at a drug house mean I am guilty?

No. Being at a location where a crime is committed or associating with people involved in a conspiracy is not enough for a conviction. The government must prove you had specific knowledge of the illegal plan and intended to further the drug conspiracy purpose.

About San Antonio Federal Defense Attorney Genaro R. Cortez.

Genaro R. Cortez is a San Antonio federal criminal defense attorney with over twenty (20) years handling state and federal drug crimes in the Western District of Texas.  This area covers the following cities:

  • San Antonio
  • Austin
  • Del Rio
  • Waco
  • El Paso

During this time, he has defended clients charged with complex cartel drug, gun, and money laundering crimes.  In addition, from 2008 to 2025, Attorney Genaro R. Cortez served on the CJA Panels in San Antonio and Del Rio, Texas.  

This gives him years of experience trying cases and negotiating plea deals on the following types of crimes:

  • Conspiracy to distribute heroin, cocaine, methamphetamine, and marijuana
  • Possession with intent to distribute heroin, cocaine, methamphetamine, and marijuan
  • Importing fentanyl, cocaine, heroin, and marijuana
  • Money laundering
  • Bulk-cash smuggling
  • Human smuggling 
  • Assaulting federal agents

As a result, Genaro R. Cortez is a proven advocate dedicated to protecting the rights of anyone charged with a federal crime in the Western District of Texas. Call today to schedule an appointment.

Call Today for a Free Case Evaluation. 210-733-7575