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Expert Witness
& Advisory Services

Independent expert witness providing impartial, evidence-based opinion in workforce compliance, contingent labour governance, and employment status disputes.

Overview

David Ballew is an independent expert witness specialising in international workforce compliance, contingent labour governance, and employment status disputes. He provides impartial, evidence-based expert opinion to courts, tribunals, and arbitration panels on industry standards, reasonable and competent operator expectations, and systemic compliance failures within complex workforce models.

 

With more than 30 years of international experience across staffing, MSP, VMS, and contingent workforce governance, David brings a rare combination of commercial, operational, and human-capital insight to contentious matters involving modern labour supply chains.

Areas of Expert Opinion

David is instructed to provide independent expert opinion, not advocacy, in matters including:

  • Contingent workforce compliance and governance

  • MSP and VMS operating models and accountability boundaries

  • Worker misclassification and employment status disputes

  • Workforce procurement and labour supply-chain failures

  • Vendor and programme performance disputes

  • Cross-border and multi-jurisdictional workforce risk

  • Industry standards and reasonable operator expectations

Opinions focus on industry practice, operational governance, and compliance systems, rather than legal interpretation.

Professional Background

David has advised multinational organisations, MSPs, staffing firms, and workforce technology providers across more than 90 jurisdictions, including engagement with Fortune 100 and Fortune 500 enterprises operating complex, high-risk workforce models at global scale. His work spans advisory, audit, implementation oversight, and independent assurance roles relating to global workforce compliance and risk management.

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He is the Founder and CEO of Nimble Global Ltd, an independent workforce compliance advisory firm supporting enterprise clients where employment, tax, regulatory, and operational risks intersect across complex labour supply chains.

Independence & Methodology

David acts independently of instructing parties and confirms that his expert opinions are:

  • Objective, impartial, and evidence-based

  • Formed using structured assessment frameworks and audit methodologies

  • Grounded in accepted industry standards and documented practices

  • Compliant with the duties of an expert under CPR Part 35 and the Ikarian Reefer principles

David does not provide legal advice and does not opine on matters of law.

Experience as an Expert

David’s expert work includes:

  • Independent expert reports

  • Pre-litigation and internal investigation opinions

  • Advisory opinions supporting dispute resolution and regulatory matters

  • Assessment of standard-of-care and governance failures in workforce programmes

Professional Listings & Affiliations

  • Listed on the UK Register of Expert Witnesses (JS Publications)

  • Affiliate Member, The Expert Witness Institute

  • Fellow, Chartered Institute of Procurement & Supply (FCIPS)

Instructions Accepted

David accepts instructions as:

  • Single Joint Expert (SJE)

  • Claimant or Defendant expert

UK and international instructions accepted.

Instructions are accepted subject to conflict checks and confirmation of independence.

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