In a violent crime investigation, what someone remembers seeing may no longer be the only account of what happened. A security camera may have captured the confrontation. A bystander may have recorded part of it on a phone. Text messages could reveal what occurred before the encounter, while cell phone data may raise questions about where someone was when the alleged offense took place.
For someone facing a serious criminal charge in Texas, digital evidence can become critical to the prosecution or the defense. But the existence of a video, message, or piece of cell phone data does not necessarily tell the complete story.
What Types of Digital Evidence May Be Used?
Investigators increasingly have access to electronic evidence from multiple sources.
Depending on the allegations, evidence in a violent crime case may include:
- Surveillance footage from businesses, homes, or parking areas.
- Doorbell or residential security camera recordings.
- Cell phone videos recorded by witnesses.
- Text messages and other electronic communications.
- Photos and videos stored on a phone.
- Social media activity.
- Location or other digital information associated with a device.
Some evidence may appear to support the prosecution’s version of events. Other evidence may contradict a witness, establish a different timeline, or provide context that was missing from the initial police investigation.
A Video May Capture Only Part of What Happened
Video can seem especially persuasive because jurors can see an event rather than rely solely on someone else’s description. But what appears on camera still requires careful examination.
A recording may begin after an altercation starts or end before it ends. The camera angle may obscure important actions. A video may lack audio, or the recording may capture only one part of a larger encounter.
These issues can be particularly significant when the defense depends on context, such as whether the accused acted in self-defense or whether another person was the initial aggressor.
Can Surveillance or Cell Phone Video Be Challenged?
Before evidence can be admitted at trial, questions may arise about whether it is authentic and whether it is what the party offering it claims.
Under the Texas Rules of Evidence, authentication generally requires sufficient evidence to support a finding that an item is what its proponent says it is. Depending on the circumstances, that may involve witness testimony, characteristics within the recording, or other evidence connecting it to the event.
The defense may also examine whether the footage is complete, whether its source is in question, and whether it accurately represents what occurred.

Cell Phones Can Provide More Than Video
A phone can contain information about events before and after an alleged violent crime.
Messages may reveal threats, prior disputes, or communications that provide context for an encounter. Photos and videos may establish who was present. Other digital information may become relevant to the prosecution’s timeline or theory of the case.
At the same time, you should not view digital evidence in isolation. A message can take on a different meaning when you consider the surrounding conversation, just as a short video clip may look different with additional footage.
Preserving Evidence Early Can Matter
Potentially useful digital evidence may not remain available indefinitely. Businesses may routinely overwrite surveillance recordings, and witnesses may delete videos or messages.
Identifying possible sources of evidence early can therefore be an important part of investigating a violent crime allegation.
Peek Law Group represents individuals throughout Texas facing assault and other serious criminal charges. Our criminal defense attorneys examine witness accounts, video recordings, cell phone evidence, and other available information to identify weaknesses in the prosecution’s allegations and evidence that may support the defense.
If you are facing a violent crime charge in Texas, contact Peek Law Group today. A careful review of the digital evidence may reveal far more about what happened than any single recording, message, or witness account.