facebook
.. Loading ..

What Is Tampering With Physical Evidence Under Texas Penal Code §37.09?

By: Mark Diaz April 1, 2026 no comments

What Is Tampering With Physical Evidence Under Texas Penal Code §37.09?

Being accused of tampering with physical evidence in Texas is a serious issue that can quickly become a felony charge. Many people do not realize that actions taken in panic, confusion, or fear can result in these allegations. Such charges often come up during traffic stops, drug investigations, domestic disputes, and other encounters with law enforcement. In Galveston County and the Houston area, prosecutors often pursue these cases aggressively, especially if they think someone tried to hide wrongdoing. It is important to understand Texas law on tampering with physical evidence if you or someone you know is under investigation or has been charged.

Understanding Texas Penal Code §37.09

Texas Penal Code §37.09 governs the offense of tampering with physical evidence. Under this statute, a person commits an offense if, knowing that an investigation or official proceeding is pending or in progress, the person:

  • Alters, destroys, or conceals any record, document, or thing with the intent to impair its availability as evidence.
  • Makes, presents, or uses any record, document, or thing knowing it is false, with intent to affect the outcome of an investigation or proceeding
  • Conceals a human corpse or alters evidence related to a death

Texas Penal Code §37.09(c) states that tampering with physical evidence is usually a third-degree felony. However, the charge can become more serious in certain situations, such as cases involving human remains or other serious factors.

Tampering charges often come with other criminal allegations, like drug possession, weapons offenses, or assault. Even if the original offense is minor, tampering with evidence can lead to much more serious consequences.

What Prosecutors Must Prove In A Tampering Case

To convict someone of tampering with physical evidence, the State must prove several key points beyond a reasonable doubt. Prosecutors need to show:

  • Knowledge of a pending or ongoing investigation
  • An intentional act of altering, destroying, or concealing evidence
  • Intended to impair the evidence’s availability

Each of these points is important. If the prosecution cannot prove even one, the case may not stand in court.

For example, Texas courts have often said that just possessing or abandoning an item is not enough to prove tampering. The State must show there was intent to impair evidence. This difference is often a key part of a defense strategy.

Common Situations That Lead To Tampering Charges

Tampering with physical evidence charges frequently arise in everyday encounters with law enforcement. Some of the most common situations include:

Throwing Items During A Traffic Stop

A common situation is when someone is accused of throwing drugs or other items out of a vehicle during a traffic stop. Prosecutors often claim that throwing the item shows intent to hide evidence.

However, Texas courts have found that just dropping an item does not always mean tampering happened. Courts look at whether the item was really hidden or if officers could easily find it.

Attempting To Hide Evidence During Police Contact

Charges can also come up if someone tries to hide something in a pocket, under a seat, or somewhere else during police contact. Again, intent is a key issue.

Deleting Text Messages Or Digital Evidence

Tampering charges now often involve digital evidence. Deleting messages, call logs, or files after learning about an investigation can sometimes lead to charges under Texas Penal Code §37.09.

Cases involving digital evidence often need careful review of timing, intent, and technical details.

Destroying Or Altering Physical Evidence

In more serious cases, tampering charges involve destroying documents, wiping devices, or changing physical evidence. These situations often come with severe penalties.

Penalties For Tampering With Physical Evidence In Texas

Tampering with physical evidence is usually a third-degree felony under Texas Penal Code §37.09(c). A third-degree felony in Texas can lead to penalties such as:

  • 2 to 10 years in prison under Texas Penal Code §12.34
  • A fine of up to $10,000
  • Probation in certain cases
  • Permanent felony record

If the case involves a human corpse or similar circumstances, the charge may be raised to a second-degree felony. This comes with harsher penalties under Texas Penal Code §12.33, including 2 to 20 years in prison.

These penalties show why it is important to take tampering charges seriously from the start.

How Tampering Charges Often Accompany Other Crimes

Tampering with physical evidence often comes up with other criminal charges. Sometimes, the tampering charge ends up being the most serious part of the case.

Examples include:

  • Drug possession cases
  • Weapons charges
  • Assault allegations
  • DWI investigations
  • Domestic violence incidents

Even if the original charge is dropped, tampering allegations can still move forward. That is why a strong defense should cover every part of the case.

Defenses To Tampering With Physical Evidence Charges

Every case is different, but some defense strategies come up often in tampering cases.

Lack Of Intent

Intent is one of the most important parts of this charge. If there was no intent to affect evidence, the charge may not hold up. Actions done in panic or confusion may not meet the legal standard under Texas law.

No Pending Investigation

Texas Penal Code §37.09 requires that the person knew about an ongoing investigation. If the accused did not know, the State may have trouble proving the case.

No Concealment Or Destruction

Courts often look at whether the item was really hidden or destroyed. If officers found the item right away, the defense might argue that evidence was not impaired.

Illegal Search Or Seizure

Fourth Amendment violations may also create defenses. If evidence was obtained through unlawful police conduct, it may be suppressed.

Why Tampering Charges Are Aggressively Prosecuted In Galveston County

Prosecutors often see tampering with physical evidence as trying to block justice. Because of this, they usually pursue these cases aggressively, especially if the alleged act happened during a police encounter.

Galveston County courts and Houston-area prosecutors often take a firm stance on these allegations. Early legal representation can play an important role in protecting rights and building a defense.

Long-Term Consequences Of A Tampering Conviction

A felony conviction for tampering with physical evidence can have long-term effects beyond court punishment. These can include:

  • Difficulty finding employment
  • Professional licensing issues
  • Loss of firearm rights
  • Housing challenges
  • Immigration consequences

Because these consequences Since these consequences can impact many parts of your life, it is crucial to defend against the charge.

Early involvement allows the defense to:

  • Review police reports
  • Preserve video evidence
  • Interview witnesses
  • Analyze digital evidence
  • Develop legal challenges

Acting early often increases the chances of a better outcome.

FAQs About Tampering With Physical Evidence In Texas

What Is Considered Tampering With Physical Evidence In Texas?

Tampering with physical evidence happens when someone changes, destroys, or hides evidence while knowing an investigation or official proceeding is happening. Texas Penal Code §37.09 explains these points. The prosecution must prove the act was intentional and meant to affect evidence. This means accidental actions or acts done without knowing about an investigation may not count as tampering. Courts often look at the details to decide if there was intent.

Is Tampering With Physical Evidence Always A Felony In Texas?

Most of the time, tampering with physical evidence is a third-degree felony. But in some cases, the penalties can be more severe. For example, if human remains are involved, it may be a second-degree felony. The exact charge depends on the facts of the case.

Can Dropping Drugs During A Traffic Stop Lead To Tampering Charges?

Yes, this is a common situation. Prosecutors might say that throwing or dropping drugs shows intent to hide evidence. However, courts look at whether the evidence was really hidden or affected. If officers found the item quickly, the defense can challenge the charge.

Can Deleting Text Messages Be Considered Tampering With Evidence?

Deleting messages after finding out about an investigation can lead to charges under Texas Penal Code §37.09. Still, prosecutors must prove intent and knowledge. Timing and the situation often matter in deciding if charges are appropriate.

What Is The Difference Between Tampering And Possession Charges?

Tampering charges are about trying to hide or destroy evidence. Possession charges are about having illegal items. Sometimes, both charges are filed, and the tampering charge can end up being more serious than the original offense.

Can Tampering Charges Be Dismissed?

Yes, charges can sometimes be dismissed depending on the facts. Defenses might include lack of intent, illegal police actions, or not enough evidence. Every case needs careful review.

What Should Someone Do If Charged With Tampering With Evidence?

Do not make any statements and contact a lawyer as soon as you can. Getting legal help early can protect your rights and help find possible defenses.

Does Tampering With Evidence Carry Jail Time?

Yes. A third-degree felony can mean 2 to 10 years in prison. In some cases, probation is possible.

Can A Tampering Conviction Be Expunged?

Most felony convictions cannot be erased from your record. If the case is dismissed, you might be able to get it expunged.

Is Tampering With Evidence Considered Serious?

Courts see tampering as getting in the way of the justice system. Because of this, prosecutors often go after these cases aggressively.

Speak With Mark Diaz About Tampering With Physical Evidence Charges

If you are facing tampering with physical evidence charges in Galveston County or Houston, it is a serious matter that needs immediate attention. Mark Diaz & Associates defends people charged with felonies and works hard to protect their rights and futures.

When you hire me, you work with me directly. My clients get my personal cell phone number because questions and emergencies can happen at any time. You will not be passed to a junior associate or lost in a busy system. From arrest to resolution, I stay personally involved and available.

Contact our Galveston criminal defense lawyer at Mark Diaz & Associates today by calling 409-515-6170 to schedule your free consultation. The firm represents clients in Galveston and all over Houston, Texas.

author avatar
Mark Diaz
Schedule a Callback



    We Respect your Privacy, Any information submitted will be confidential