★ NOW AVAILABLE — SOUTHERN DISTRICT OF TEXAS
INTEGRITY ASSESSMENTS INVESTIGATIONS · TX LIC. A19944401

Give Your Client's Remorse
a Data Point — Before Sentencing

IAI is among the only firms in the Southern District of Texas offering remote VerifEye® credibility assessment — a scientifically validated PSI tool that gives judges objective evidence, not just attorney argument.

$250
Standalone
Assessment
$450
Full PSI
Packet
20 Min
Remote
Session
80%+
Accuracy
Rate
CJA
Panel
Vendor
EN/ES
Bilingual
Service
📅 BOOK A VERIFYE® SESSION LEARN ABOUT VERIFYE® VIEW ALL CAPABILITIES
🔒
Exclusive Coverage: IAI is among the only providers of VerifEye® PSI assessment in the Houston metro and Southern District of Texas. Your client gets objective credibility data no other local firm can deliver at this price point.
VERIFYE® CREDIBILITY ASSESSMENT

The Tool That Speaks Before Your Client Does

Judges weigh remorse and acceptance of responsibility heavily at sentencing — but they typically see it only through a subjective lens. VerifEye® changes that.

80%+
Verified accuracy rate under standard conditions
Remote
No office visit — session conducted via video
20 Min
Session length — minimal client disruption
24 Hr
Signed forensic report turnaround
Why Attorneys Order This

Sentencing judges are required to weigh your client's remorse and acceptance of responsibility — but all they typically see is your word and a probation officer's subjective PSI.

VerifEye® uses ocular-motor technology to measure involuntary eye behavior — the same science used by federal agencies and Fortune 500 companies worldwide. The result is a professionally formatted, signed forensic report you can submit alongside the PSI.

Pre-sentencing: Know where your client stands before you walk into the courtroom
Sentencing mitigation: Present objective credibility evidence to the bench — not just argument
Out-of-county clients: 100% remote — no travel, no scheduling headaches
Converus-certified examiner administers and signs every report
Results delivered to iai.veripsi@outlook.com within 24 hours of session
STANDALONE OPTION
VerifEye® Assessment Only
$250
Full ocular-motor credibility test + signed forensic report. Delivered within 24 hours of session. Ideal when attorney already has PSI documentation in place.
BOOK STANDALONE SESSION
Result Classifications: Every VerifEye® report delivers one of three Converus-standard classifications — Credible, Deceptive, or Indeterminate — signed by a Certified EyeDetect® Examiner. Questions? Email iai.veripsi@outlook.com or call (407) 341-2778.
TRI-LEVEL COURT APPROVAL

Court-Approved at Every Level

IAI is already approved across federal, district, and county courts — no additional authorization required for CJA panel attorneys.

🏛
FEDERAL
U.S. District Court
Southern District of Texas
CJA Panel Vendor — court-appointed by the Southern District of Texas. Zero bureaucratic friction for CJA-appointed defense counsel. Federal billing infrastructure already in place.
✓ CJA PANEL APPROVED
DISTRICT
Harris County
District Courts
Approved investigations vendor. 12 years of insider knowledge of Harris County Corrections — booking procedures, release timelines, and institutional processes that directly affect your defense strategy.
✓ HARRIS COUNTY APPROVED
📋
COUNTY
Fort Bend County
Courts
Approved investigations vendor serving one of Texas's fastest-growing criminal dockets. Full bilingual English/Spanish service capacity for the county's diverse defendant population.
✓ FORT BEND APPROVED
FULL SERVICE CAPABILITIES

What IAI Brings to Your Case

Every service is delivered court-ready, professionally documented, and built around the evidentiary standards of criminal defense practice.

📂
Case File Review
We read the entire file — police reports, body cam logs, chain of custody records — looking for inconsistencies, policy violations, and constitutional issues your client's defense depends on.
🔎
Witness Location & Interview
We locate and interview witnesses law enforcement may have missed, ignored, or discouraged — building the alternative narrative your client deserves.
📋
Agency Policy Analysis
Every agency has written SOPs. We compare what officers did against what their own policies required — and document every deviation with command-level authority.
👁
EyeDetect® Credibility Assessment
Two Converus-certified examiners on staff. Pre-trial evaluation, mitigation, PCSOT testing, and informant credibility assessment — one of very few firms in Houston with this capability.
🔍
Background Investigations
We investigate the investigators. Officers, informants, and key witnesses all have histories. We find what matters and deliver it court-ready for your use at trial or plea.
🎙
Expert Testimony
Dr. Walwyn provides expert testimony on law enforcement procedure, use of force, and investigative conduct — credentials no opposing expert in Harris County can match.
CREDIBILITY ASSESSMENT

EyeDetect® — A Scientifically Validated Alternative

Patented technology by Converus. Non-invasive, no physical contact, digitally scored. Used by law enforcement and government contractors worldwide.

The EyeDetect® Advantage
EyeDetect measures involuntary eye behavior — pupil dilation, blink rate, and reading patterns. Unlike polygraph, it requires no physical attachment and produces a digitally scored result. IAI has two certified examiners on staff — one of the very few firms in Houston with this capability.
30 Min
Test Time
2
Certified Examiners
0
Physical Contact
86–91%
Accuracy Range
Pre-Trial Evaluation
Test your client before committing to a defense theory. Know where your client stands before the prosecution does.
Mitigation
Demonstrate credibility to prosecutors or sentencing judges with a validated, professionally administered assessment.
PCSOT Testing
Court-required sex offender testing administered by a PCSOT-certified examiner — meeting federal and state compliance requirements.
Informant Challenge
Test cooperating witnesses whose testimony drives prosecution. Documented results for use in impeachment or plea negotiation.
INVESTIGATIVE TEAM

Command Experience. Defense Focus.

Every member of the IAI team brings institutional law enforcement knowledge — deployed entirely in service of your client's defense.

Dr. Celvin G. Walwyn
EXECUTIVE DIRECTOR & LEAD INVESTIGATOR
Retired International Police Commissioner of the Federation of St. Kitts and Nevis. Retired Deputy Commissioner of the U.S. Virgin Islands Police Department. Retired Texas Police Chief (2026). Ph.D. in Public Safety Leadership, Summa Cum Laude with Highest Honors. Active TCOLE Master Peace Officer License.
Ph.D. SUMMA CUM LAUDE TCOLE MASTER PEACE OFFICER EYEDETECT® CERTIFIED PCSOT CERTIFIED CJA PANEL VENDOR
A.D. Walwyn, M.Sc.
OWNER & MANAGING MEMBER (51%)
Licensed Private Investigator since 2021. 12 years Harris County Corrections — direct insider knowledge of booking, release, and institutional processes. Certified EyeDetect® Examiner. Bilingual English/Spanish. M.Sc. degree in Security Management.
M.Sc. SECURITY MGMT EYEDETECT® CERTIFIED BILINGUAL EN/ES TX LICENSED PI
Earl A. Campbell, B.Sc.
INVESTIGATOR
5 years investigative experience. Background in Psychology with Mental Health Counseling specialization — bringing a clinical lens to witness and client interactions critical to defense investigations. Assigned to Harris and Fort Bend County matters.
B.Sc. PSYCHOLOGY 5 YRS EXPERIENCE WITNESS SPECIALIST
Ph.D. SUMMA CUM LAUDE TCOLE MASTER PEACE OFFICER CONVERUS CERTIFIED EXAMINER PCSOT CERTIFIED TX LIC. A19944401 CJA PANEL VENDOR · SDTX BILINGUAL EN/ES MINORITY WOMEN-OWNED
HOW TO ENGAGE IAI

Simple. Fast. Built for Defense Practitioners.

01
Initial Consultation
Call or email IAI. Describe your case and what you need. We will tell you within 24 hours whether we can help and what it will take.
02
Case Assignment
We assign the right team member based on the nature of the matter — federal, state, credibility assessment, or subject locate.
03
Investigation & Documentation
We conduct the investigation and produce a written report that meets your evidentiary standards — court-ready, professionally documented.
04
Expert Support
Dr. Walwyn is available for affidavits, deposition preparation, and expert testimony on law enforcement procedure and agency compliance.
THE COMMAND DIFFERENCE

What Separates IAI from Every Other Firm in Harris County

38+
YEARS COMMAND EXPERIENCE
Command-level law enforcement experience across a sovereign nation, U.S. territory, and State of Texas — a perspective no local-only firm offers.
Ph.D.
ACADEMIC CREDENTIALS
Summa Cum Laude with Highest Honors — Public Safety Leadership specialization. Expert testimony grounded in both scholarship and command experience.
TCOLE
ACTIVE TX LICENSE
Active TCOLE Master Peace Officer License providing current insight into Texas law enforcement training requirements — essential for policy analysis and expert testimony.
2× Cert.
EYEDETECT® EXAMINERS
Two Converus-certified EyeDetect® examiners on staff — among very few firms in all of Houston with this capability.
MWOB
MINORITY WOMEN-OWNED
Minority Women-Owned Business — independently operated, expanding access to quality defense investigation for all practitioners regardless of case budget.
3 Jurisd.
MULTI-JURISDICTIONAL
Sovereign nation, U.S. federal territory, and State of Texas — command experience that crosses jurisdictional lines and informs every investigation.

IAI is the only criminal defense investigation firm in the Southern District of Texas with documented command succession, system redundancy, and a formal continuity plan — because your client's case can't afford an investigator who goes dark.

CRIMINAL DEFENSE ATTORNEY AWARENESS

The Defense Investigator Advantage

A presentation prepared exclusively for criminal defense attorneys — how IAI strengthens your practice, your clients' cases, and your CJA workflow.

🎯
IAI Attorney Awareness — Module 2
How IAI Strengthens Your Criminal Defense Practice — Prepared exclusively for criminal defense attorneys in the Southern District of Texas. View on any device, no login required.
▶   VIEW FULL PRESENTATION
RETAIN IAI

Ready to Strengthen Your Client's Defense?

Capability Statement and Bio Sheet available for download below. Response within 24 hours for all inquiries.

📄  DOWNLOAD CAPABILITY PACKAGE 👤  DOWNLOAD EXECUTIVE BIO
Get In Touch
Available 24 hours for urgent defense matters · Bilingual English/Spanish
EMAIL IAI NOW
CONTACT INFORMATION
📧
VerifEye® Results
🌐
Website
📍
Location
Harris County, Texas
QUICK FACTS
🏛
TX PI License
A19944401
CJA Panel Status
Approved — SDTX, Harris & Fort Bend
🕐
Availability
24 Hours · Urgent Matters Welcome
🌎
Languages
English & Spanish (bilingual staff)
CJA Panel Attorneys: IAI is already court-approved — no additional authorization required. Submit your assignment and we get to work immediately.
SEND A MESSAGE

Get in Touch Directly

Fill out the form below and Dr. Walwyn will respond within 24 hours.

This will open your email client with the message pre-filled.