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Fraud Expert Witnesses: 32

Current Category:

Fraud (32)
Consumer Fraud Money Laundering White Collar Crimes
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Luxury Goods Valuation Authentication Expert Witness Jack Holowczak

Provenance

Jack Holowczak

Founding Director

CAN, USA

Toronto ON CAN

phone: 416-409-7260

Email Website

Jack Holowczak is a Luxury Goods Authentication and Valuation Expert and USPAP-compliant Personal Property Appraiser. As Founding Director of PROVENANCE, he has examined 2,000,000+ items across 50+ luxury houses since 2016 — Hermès, Chanel, Louis Vuitton, Goyard, Chrome Hearts — with documented counterfeit and superfake detection protocols.

He serves counsel in counterfeit, trademark, insurance, estate, customs, and criminal matters in all U.S. and Canadian jurisdictions. Fees never contingent.


Gambling Sports Betting Expert Witness Jonathan Russell

Jonathan Russell

Sports Book Director / Compliance Governance

Kingsgate
Avenue Du Manoir

St. Peter Port Guernsey GY1 1PE
GBR, International

phone: +447887880908

Email

Seasoned Gambling and Sports Integrity professional and former Chair of the International Betting Integrity Association, with 30 years of experience in sportsbook trading, online sports betting platforms, odds and pricing, integrity monitoring, and governance across multiple jurisdictions.

Mr. Russell provides independent, data-driven analysis of betting markets, sports integrity risks, platform design, and operator conduct in civil, regulatory, and criminal proceedings.

Featured resources

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