Criminal Defense Investigations in San Antonio: How a Defense Investigator Uncovers the Full Story

When someone is charged with a crime in San Antonio, the case often moves quickly. Arrest reports are written, discovery begins to arrive, and court dates in Bexar County are set before families have had a chance to catch their breath. A defense attorney carries the legal strategy, but the facts that support that strategy still have to be found, verified, and documented. That is the role of a criminal defense investigator.

I am Jered Gallegos, Chief Investigator at J.I.S Private Investigations, licensed in Texas under license A24038101. Our team works alongside defense attorneys and families across San Antonio and Bexar County to make sure the full story is examined, not just the version written in the first report.

Why Independent Defense Investigation Matters

Law enforcement investigations are often built under time pressure and with a particular theory in mind. Witnesses may not be fully interviewed, video may be overwritten before anyone requests it, and small details in a timeline can be overlooked. An independent defense investigator approaches the case with fresh eyes and one goal: to find the facts, wherever they lead.

J.I.S has helped innocent people get out of jail by uncovering evidence that was missed. That work did not come from speculation. It came from patient, lawful fieldwork, careful review, and documentation that attorneys could rely on.

Reviewing Police Reports and Discovery

Every defense investigation starts with the record. We review police reports, witness statements, body-worn camera references, dispatch notes, and other discovery provided through counsel. We look for inconsistencies, gaps in time, witnesses who were mentioned but never interviewed, and physical details that do not match the narrative. Those findings become a roadmap for the field investigation.

Locating and Interviewing Witnesses

Witnesses are frequently the most important part of a criminal case, and they are often the hardest to reach. People move, change phone numbers, or simply never hear from anyone after the night of the incident. We use lawful locate methods and public-record research to find witnesses across San Antonio, Bexar County, and beyond.

Once a witness is located, we conduct professional, respectful interviews and document what they observed. Our interviews are designed to capture accurate information, not to pressure anyone. When appropriate and with the attorney's direction, statements are recorded or summarized in a way that can support the defense.

Scene Canvass, Photographs, and Video Retrieval

A visit to the scene can change how a case is understood. We canvass the location and surrounding area, photograph lighting, sight lines, distances, and layout, and identify businesses or residences that may have cameras. Surveillance footage in San Antonio is often overwritten within days or weeks, so early requests matter. We work quickly to identify potential video sources and help counsel take the proper steps to preserve them.

Background Research on Witnesses

Credibility is a central question in many trials. Through lawful public-record research, we develop background information on witnesses that may be relevant to bias, motive, prior statements, or reliability. This research is performed ethically and within the law, and it is shared with the defense attorney so they can decide how it fits the overall strategy.

Timeline Reconstruction

Many cases turn on minutes. Where was the client, and when? Who arrived first? What happened before the call to police? We build detailed timelines using records, receipts, witness accounts, photographs, and video. A clear, well-supported timeline can confirm an alibi, expose a contradiction, or show that events could not have happened the way they were first described.

Court-Admissible Documentation

Findings only help if they hold up. Our reports are written in a clear, factual format, with dates, times, sources, and chain-of-custody notes for photographs and recordings. We avoid opinion and speculation and focus on what can be verified. This approach is the same standard we apply across all of our court-related work, and it gives attorneys documentation they can confidently present.

Testifying When Needed

When a case goes to hearing or trial, our investigators can testify about the work performed, the methods used, and the evidence collected. Being prepared to explain how findings were obtained, under oath and on cross-examination, is part of doing the job correctly from the start.

How We Work With Attorneys and Families

Most of our criminal defense work is performed at the direction of the defense attorney, which helps protect the confidentiality of the work product. Families often reach out to us first, and we are glad to help them understand how an investigator fits into the case and coordinate with their attorney.

Every investigation is conducted lawfully and ethically. We never use methods that would put a case, a client, or our license at risk. Our job is to find the truth and document it properly.

Serving San Antonio and Bexar County

J.I.S Private Investigations supports criminal defense matters throughout San Antonio and Bexar County, including surrounding communities such as Converse, Live Oak, Schertz, Helotes, Leon Valley, Alamo Heights, New Braunfels, and Boerne. We are familiar with the local area and understand how quickly evidence can disappear.

Talk With a Defense Investigator Today

If you or someone you love is facing criminal charges, or you are an attorney who needs investigative support, early action can make a real difference. Call J.I.S Private Investigations at 210-960-4861, email pi@jinvestigate.com, or submit your case information securely through our client portal at https://jis-cases.vercel.app/portal.

Jered Gallegos, Chief Investigator, J.I.S Private Investigations. Texas License A24038101.