---
title: Criminal Investigations - Blackfish Intelligence
description: Navigate the complexities of criminal defense with Blackfish's expert investigators. From minor theft to capital murder, we ensure justice prevails.
image: https://blackfishintel.com/hubfs/Website%20Images/criminal_investigations.webp
---
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- [ABOUT US](https://blackfishintel.com/about?hsLang=en)
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- SERVICES
- Criminal Investigations
- [Criminal Defense Investigation](https://blackfishintel.com/services/criminal-investigations)
- [Trial Consultation](https://blackfishintel.com/services/trial-consulting)
- [Missing Persons Investigations](https://blackfishintel.com/services/missing-persons)
- Civil & Family Investigations
- [Family Law](https://blackfishintel.com/services/family-law)
- [Surveillance](https://blackfishintel.com/services/surveillance)
- [Background Investigations](https://blackfishintel.com/services/background-investigations)
- [Digital Forensics Investigations](https://blackfishintel.com/services/digital-forensics)
- [Cell Phone & Computer Forensics](https://blackfishintel.com/services/digital-forensics)
- [AI Investigations](https://blackfishintel.com/services/ai-investigations)
- [Technical Surveillance Countermeasures](https://blackfishintel.com/services/technical-surveillance-countermeasures)
- [Government TSCM](https://blackfishintel.com/services/government-tscm)
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- - Criminal Investigations
- [Criminal Defense Investigation](https://blackfishintel.com/services/criminal-investigations)
- [Trial Consultation](https://blackfishintel.com/services/trial-consulting)
- [Missing Persons Investigations](https://blackfishintel.com/services/missing-persons)
- Civil & Family Investigations
- [Family Law](https://blackfishintel.com/services/family-law)
- [Surveillance](https://blackfishintel.com/services/surveillance)
- [Background Investigations](https://blackfishintel.com/services/background-investigations)
- [Digital Forensics Investigations](https://blackfishintel.com/services/digital-forensics)
- [Cell Phone & Computer Forensics](https://blackfishintel.com/services/digital-forensics)
- [AI Investigations](https://blackfishintel.com/services/ai-investigations)
- [Technical Surveillance Countermeasures](https://blackfishintel.com/services/technical-surveillance-countermeasures)
- [Government TSCM](https://blackfishintel.com/services/government-tscm)
- [Corporate TSCM](https://blackfishintel.com/services/corporate-tscm)
- [Residential TSCM](https://blackfishintel.com/services/residential-tscm)
- [e-Discovery](https://blackfishintel.com/services/e-discovery)
- [Exit Audits](https://blackfishintel.com/services/e-discovery)
- [Data Culling & Processing](https://blackfishintel.com/services/e-discovery)
- [Regulatory, Back-Up & Archiving](https://blackfishintel.com/services/e-discovery)
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# Criminal Defense Investigations
State of the art tactics and methods to gain insightful evidence you need.
EXPERIENCED PROFESSIONALS
## criminal law
Whether you’ve been accused of a crime, or need help solving one, it’s important to work with investigators who understand not only Texas criminal law, but also the policies, procedures, and techniques used by professional law enforcement. As former police investigators, we have applied these policies, procedures and techniques while working on crimes ranging from minor theft to capital murder. In fact, as certified law enforcement instructors, we have taught these techniques to police officers. We can help your attorney identify where proper procedure was not followed, and articulate the logic for invalidating the suspect evidence. Alternatively, if you or a member of your family were victims of a serious crime, a private investigator may be the best opportunity to achieve justice.
CRUCIAL IN EVERY CASE
## Let us help you
Private investigation can often open doors for the police by providing information they can act on.
[](https://blackfishintel.com/hs/cta/wi/redirect?encryptedPayload=AVxigLIYb7GF6E3%2FLcjH7Uq92gzaALZdRr98uON26kCvG3Rw%2BlF0HfPX9y9GW5kAIup0BalXjEUZTaHO6pN7OlT6UytlpPGPoeKIilumRVc8pNHEigCEcVVT22fnkQ7o2nt%2FYLMKCBkTTlG2H3OLFJfCseLtOPbEX6%2Bo2wF%2Fj0FidOw6ofgLhN8%3D&webInteractiveContentId=161068267399&portalId=45284231&hsLang=en)
Collecting Information
## Criminal Investigation Techniques
### Subject Matter Expertise
Tap into our seasoned professionals for deep insights and expert interpretation & guidance on your case's intricate details and legal nuances.
### Reenactments/Demonstratives
We craft vivid reenactments and demonstratives to present compelling visuals that clarify complex scenarios, aiding in jury comprehension.
### Misdemeanor & Felony Level Offenses
From misdemeanors to felonies, we adeptly investigate all levels of offenses, ensuring thorough defense preparation tailored to your case.
### Court-Appointed and Retained Cases
Whether court-appointed or retained, we offer unwavering dedication and strategic defense preparation for every case.
### Crime Scene Analysis
Our meticulous crime scene analysis enables discovery of crucial evidence, reconstruction of events to uncover the truth and fortify your defense strategy
### Forensic Case Review and Analysis
Leveraging cutting-edge forensic techniques, we conduct comprehensive case reviews and analyses, uncovering hidden insights crucial for your defense.
We Will Assist You 24/7
## Quick Contact
[](https://blackfishintel.com/?hsLang=en)
#### HEADQUARTERS
- 2745 Dallas Parkway, Ste 405
Plano, TX 75093
- [800-403-8024](tel:8004038024)
- [office@blackfishintel.](mailto:office@blackfishintel.net)net
- License #A07282601
#### The Partners
Daryl Parker
## Daryl Parker
### PRESIDENT & SR. INVESTIGATOR
Daryl Parker is a U.S. Marine Corps veteran, and a board-certified Criminal Defense Investigator with over twenty-five years of experience in military, law enforcement, and private investigations. His work includes high-profile cold-case investigations, and founding a non-profit providing investigative services for potential wrongful conviction cases. Daryl is also a certified Force Science Analyst and a Firearms Expert.
[Contact Daryl](mailto:daryl@blackfishintel.com)
JD Spielman
## JD Spielman
### PARTNER & SR. INVESTIGATOR
JD Spielman is a U. S. Army veteran and a board-certified Criminal Defense Investigator with over 30 years of experience in law enforcement. In 2010 he was selected as the Investigator of the Year by the Dallas County District Attorney, and subsequently became the Deputy Chief Investigator with the Collin County DA’s office. He is currently in charge of the Criminal Investigations division at Blackfish.
[Contact JD](mailto:jd@blackfishintel.com)
Nathan Goldman
## Nathan Goldman
### Partner
Nathan Goldman is the Director of Digital Forensics, leading complex digital investigations with expertise and precision. He holds a Master’s degree in Digital Forensics and Cyber Security from Sam Houston State University and a Bachelor’s degree in Criminal Justice. Certified as a Cellebrite Operator (CCO), Magnet Certified Forensics Examiner (MCFE), and Magnet Certified Verakey Examiner (MCVK), he excels in mobile, computer, and cloud-based forensic analysis.
[Contact Nathan](mailto:nathan@blackfishintel.com)
Maddy Wickham
## Maddy Wickham
### Partner
With over 10 years of experience leading complex investigative operations, Maddy Wickham is a recognized leader in high-stakes surveillance and background investigations. Named the 2025 Blackfish Investigator of the Year, she excels at surveillance operations, infiltration tactics, and multi-layered investigative strategies that deliver critical results. From skip-tracing, missing persons, asset identification, advanced OSINT analysis, and criminal investigations, Maddy has a proven track record of winning, saving clients millions of dollars in lawsuits through meticulous investigative work. She also excels in online reputation management and privacy protection, helping high-profile individuals and executives shield their personal information from public exposure. Known for her caring and disciplined approach, Maddy consistently delivers actionable intelligence that drives successful outcomes.
[Contact Maddy](mailto:maddy@blackfishintel.com)
#### HELPFUL LINKS
- [About](https://blackfishintel.com/about)
- [Services](https://blackfishintel.com/services)
- [Digital Forensics](https://blackfishintel.com/services/digital-forensics)
- [Careers](https://blackfishintel.com/careers)
- [Contact](https://blackfishintel.com/contact)
#### THE BLACKFISH FILES
- [Fourth Of July Fireworks](https://blackfishintel.com/blackfish-files/fourth-of-july-fireworks)
- [Acquitted Of All Charges](https://blackfishintel.com/blackfish-files/acquitted-of-all-charges)
- [Benjamin Spencer Released](https://blackfishintel.com/blackfish-files/benjamin-spencer-released)
- [Fish Out Of Water](https://blackfishintel.com/blackfish-files/fish-out-of-water)
[Privacy Policy](https://blackfishintel.net/privacy-policy)
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