Agenda

Interested in speaking? Contact Sophia Williams at Sophia.Williams@centellic.com.

Wednesday, October 21, 2026

12:00 PM-1:00 PM

Welcome lunch and registration

1:00 PM-1:05 PM

GIR welcome remarks

1:05 PM-2:05 PM

Masterclass: the art of the witness interviews

An interactive panel discussion on what makes a witness interview effective. The faculty will explore the role witness interviews play across the litigation lifecycle, from depositions and trial preparation to cross-examination at trial, and how they can shape evidence, strategy and outcomes. Drawing on real-life experience, the session will showcase what good practice looks like in witness interviews, highlighting the importance of preparation, questioning techniques, cultural considerations and the common pitfalls to avoid.

The discussion will explore how witness interviews are used at different stages of the US judicial process and why they are critical to building credible evidence and effective case strategy. Through a mock witness interview exercise from the faculty, attendees will gain practical insights into interview preparation and witness handling, with opportunities to ask questions throughout the session.

Milton Williams
Milton Williams Partner, Walden Haran Williams
Tatiana Martins
Tatiana Martins Partner, Davis Polk
Matthew Sullivan
Matthew Sullivan Partner, Hogan Lovells Cadwalader
Vincent Walkden
Vincent Walkden Chief Executive Officer, KonaAI
Thomas Windom
Thomas Windom Founding Partner and Former Federal Prosecutor, Heaphy Smith Harbach & Windom
Tiffany Engsell
Tiffany Engsell Senior Corporate Counsel, Bristol Myers Squibb
2:05 PM-2:35 PM

Coffee break

2:35 PM-4:35 PM

GIR Academy Live: what would you do?

In this session, faculty will introduce a series of scenarios that arise at different stages of the US witness interview process, from initial preparation through to deposition and trial. Participants will work in groups to discuss how they would approach each situation, before selecting pairs to perform a short mock interview to demonstrate their approach in practice within the different stages of the interview process.

A participant from each group will give feedback to the cohort on their tips from the exercise.

Milton Williams
Milton Williams Partner, Walden Haran Williams
Tatiana Martins
Tatiana Martins Partner, Davis Polk
Matthew Sullivan
Matthew Sullivan Partner, Hogan Lovells Cadwalader
Vincent Walkden
Vincent Walkden Chief Executive Officer, KonaAI
Thomas Windom
Thomas Windom Founding Partner and Former Federal Prosecutor, Heaphy Smith Harbach & Windom
Tiffany Engsell
Tiffany Engsell Senior Corporate Counsel, Bristol Myers Squibb
4:35 PM-4:40 PM

Closing remarks

Gina Castellano
Gina Castellano Partner, Hogan Lovells Cadwalader