Federal drug cases rarely begin with the arrest. By then, agents may already have months of messages, location data, financial records, controlled buys, or recorded calls—and the first number in the indictment may be a mandatory minimum.

That does not make the government’s version complete or correct. It makes the early review of how the evidence was gathered, what a person actually knew, and which drug quantity can legally be attributed to that person especially important.

At Keith & Lorfing, founding partner Russell Lorfing is a former federal prosecutor in Lubbock, and our team includes multiple former federal and state prosecutors. If you are under investigation for trafficking, conspiracy, possession with intent to distribute, or another narcotics offense, speak with a federal drug crimes defense lawyer before answering questions from agents or making decisions that could affect the case.

What a federal drug trafficking charge actually means

“Drug trafficking” is a common label, but it is not a separate offense defined by that name in 21 U.S.C. § 841. Section 841 prohibits knowingly or intentionally manufacturing, distributing, dispensing, or possessing a controlled substance with intent to manufacture, distribute, or dispense it.

The government does not have to prove that money changed hands. “Distribute” generally means transferring a controlled substance, so an alleged handoff can support a distribution charge even when no sale is alleged.

Our guide to federal drug distribution charges explains what prosecutors must prove when the case is based on an alleged transfer, sale, delivery, or possession with intent to distribute

Possession, distribution, and conspiracy are not interchangeable

Simple possession under 21 U.S.C. § 844 is different from possession with intent to distribute. Quantity may be evidence of intent, but there is no single weight that automatically turns possession into intent to distribute in every case.

A conspiracy charge under 21 U.S.C. § 846 is different again. The government must prove a knowing agreement to commit a federal drug offense and the defendant’s knowing participation; friendship, presence, or association with people involved in drugs is not enough by itself.

Section 846 authorizes the same penalties as the offense that was the object of the conspiracy. That is why a person may face serious exposure even when agents did not seize drugs from that person directly.

Why a drug case may go to federal court

Texas and the federal government may both have laws that apply to the same conduct. A federal case may grow from a DEA, FBI, or Homeland Security Investigations operation, a joint task force, a multi-district investigation, the use of federal investigative tools, or a referral to the U.S. Attorney’s Office.

Drugs do not have to be carried across a state line in the defendant’s presence for prosecutors to bring a charge under § 841. The charging decision is fact-specific, and agency involvement alone does not tell you what the government can prove.

The important difference is the system that follows. Federal cases may involve statutory minimum sentences, advisory Sentencing Guidelines, grand jury proceedings, and strict motion deadlines.

An investigation can also stay quiet for months or longer while agents collect evidence. Silence from the government is not proof that the investigation has ended.

How agents build a federal trafficking case

A federal file is often assembled one piece at a time. The government may combine witness accounts, surveillance, digital evidence, laboratory results, financial records, and physical evidence to argue that separate events form one operation.

That combination can look powerful without being reliable. A careful defense asks where each item came from, whether it was obtained lawfully, and whether it proves what the government says it proves.

Informants and controlled buys

An informant may cooperate for payment, leniency, or another personal benefit. Agents may search the informant before and after a controlled buy, provide funds, monitor the encounter, or record parts of it—but the procedure used in one investigation may differ from another.

The defense may examine the informant’s prior statements, benefits, criminal history, ability to observe, and compliance with instructions. Missing recordings, inconsistent reports, or gaps in surveillance can matter.

Wiretaps and phone evidence

Title III permits certain wire and electronic communications to be intercepted only with a qualifying court order. An application must address probable cause and why normal investigative procedures have failed, reasonably appear unlikely to succeed, or would be too dangerous, and an interception order must include limits intended to reduce the capture of unrelated communications. See 18 U.S.C. § 2518.

Recorded language is often coded, incomplete, or open to more than one meaning. The defense can examine the application, authorization, minimization, sealing, identification of speakers, and the government’s interpretation of the calls.

Phone extractions, cloud records, cell-site information, and location data raise different legal and factual questions. A contact saved in a phone or a dot on a map does not, by itself, prove an agreement or knowledge of drugs.

Traffic stops, parcels, and searches

Agents may use evidence from a traffic stop, parcel investigation, home search, or phone search. Each requires its own review because consent, reasonable suspicion, probable cause, warrant scope, and the duration of a detention can affect whether evidence is admissible.

There is no general exception to the Fourth Amendment simply because agents suspect drug trafficking. A valid warrant also authorizes a search for specified evidence; it does not prove that the person searched committed a crime.

Drug quantity and mandatory minimum sentences

Drug type and quantity can place a § 841 offense into a statutory penalty tier. For the quantities below, § 841(b)(1)(A) generally provides a 10-year minimum and § 841(b)(1)(B) generally provides a five-year minimum, assuming the required drug type and quantity are properly charged and established.

These are not complete sentencing calculations. Prior convictions, a resulting death or serious bodily injury, the offense of conviction, and available statutory relief can change the range.

For a conspiracy, the government may seek to attribute drugs handled by other people to a defendant. That does not mean every drug connected to the wider conspiracy automatically counts against every member; the scope of the jointly undertaken activity and reasonable foreseeability can be disputed at sentencing.

Death or serious bodily injury

Section 841 contains much higher penalties when death or serious bodily injury results from the use of the distributed drug. This allegation has a causation requirement; an overdose occurring somewhere in the alleged chain does not automatically establish the enhancement against every accused person.

Medical records, toxicology, the source of the substance, and other possible causes may all require close review. The exact statutory provision and facts alleged matter.

Prior-conviction enhancements under § 851

To seek certain increased statutory penalties based on a prior conviction, prosecutors must file an information under 21 U.S.C. § 851 before trial or before entry of a guilty plea. Current § 841 provisions use defined terms such as “serious drug felony” and “serious violent felony,” so not every old drug conviction qualifies.

The prior offense, sentence imposed, release date, and filing procedure should be checked. Section 851 also provides a process for affirming or denying the conviction alleged, although time limits restrict some challenges to an older conviction’s validity.

The Guidelines can count more than the indictment

A statutory minimum and the advisory U.S. Sentencing Guidelines are separate parts of the analysis. Under the Guidelines, the court may consider relevant conduct supported under sentencing rules, including quantities beyond the count of conviction in some cases.

The calculation may also include adjustments for a dangerous weapon or a person’s role, as well as a possible reduction for acceptance of responsibility. None of those adjustments should be assumed from the charge alone.

The court must calculate the advisory range and then consider the sentencing factors in 18 U.S.C. § 3553(a). A statutory minimum still controls unless a lawful basis—such as the safety valve or an authorized government motion—permits a sentence below it.

Defenses in a federal drug trafficking case

The strongest defense depends on the charge and the evidence, not a stock checklist. Our federal drug crimes defense attorneys examine the government’s proof of knowledge, possession, intent, conspiracy, drug quantity, search and seizure, and witness reliability before determining which defenses the evidence supports. We look for the point where the government’s story outruns what its witnesses, records, and seized evidence can reliably establish.

Potential issues may include:

• Knowledge: Did the evidence prove the accused knew a substance was present or knew the nature of the alleged plan?

• Possession: Did the accused actually possess the drugs, or did the government rely on proximity and an unproven claim of control?

• Intent: Does the evidence prove an intent to distribute, rather than personal possession or another innocent explanation?

• Conspiracy membership: Did the accused knowingly join the charged agreement, or merely know, associate with, or do business with someone involved?

• Search and seizure: Did agents stay within constitutional and warrant limits when stopping a vehicle or searching a home, package, or device?

• Witness reliability: What benefits, contradictions, or missing safeguards affect an informant’s account?

• Drug identity and weight: Was the substance properly tested, weighed, documented, and preserved through the chain of custody?

• Quantity attribution: Which amounts were within the activity the accused agreed to undertake and reasonably foreseeable to that person?

A motion to suppress can exclude evidence obtained unlawfully, but it is not automatic and does not end every case. The warrant, affidavits, recordings, reports, and timeline must be reviewed before anyone can responsibly assess that option.

The safety valve is not the same as cooperation

The safety valve in 18 U.S.C. § 3553(f) can allow a court to sentence below an otherwise applicable minimum for specified drug offenses. Eligibility requires satisfying every statutory condition, including the detailed criminal-history rule.

The other conditions generally require that:

• Violence and weapons: The defendant did not use violence or credible threats of violence, possess a firearm or other dangerous weapon in connection with the offense, or induce another person to do so.

• Resulting harm: The offense did not result in death or serious bodily injury.

• Role: The defendant was not an organizer, leader, manager, or supervisor of others in the offense and was not engaged in a continuing criminal enterprise.

• Truthful disclosure: By the sentencing hearing, the defendant truthfully provided the government all information and evidence the defendant had about the offense and related conduct covered by the statute.

That last condition does not mean the information must be new or useful. It also does not make safety-valve disclosure identical to substantial assistance, which generally requires a government motion for a sentencing benefit based on assistance.

Both choices can carry legal and personal risks. No one should enter a proffer session or make a disclosure without first understanding the agreement, the possible use of the statements, and the safety consequences.

Early choices that can change the case

An unexpected call, subpoena, or search can create pressure to act immediately. The safer response is to preserve information, avoid discussing the facts, and get advice about the specific demand.

Do not delete messages, wipe a device, hide records, or ask another person to do it. Depending on the facts and intent, altering or concealing material connected to a federal matter can create separate obstruction allegations under laws such as 18 U.S.C. § 1519.

Do not contact a suspected informant or another accused person to coordinate accounts. Even a well-meant conversation can be recorded or portrayed as pressure on a witness.

You may decline a voluntary interview and ask to speak with a lawyer. A subpoena or court order is different and should not be ignored; counsel can help determine what must be produced, when, and how.

If you received a target letter, subpoena, search warrant, or indictment, contact Keith & Lorfing before responding to investigators or making statements about the allegations.