ARTICLE
26 August 2025

Importance Of Mystery Shopping In Litigation

AC
Ankura Consulting Group LLC

Contributor

Ankura Consulting Group, LLC is an independent global expert services and advisory firm that delivers end-to-end solutions to help clients at critical inflection points related to conflict, crisis, performance, risk, strategy, and transformation. Ankura consists of more than 1,800 professionals and has served 3,000+ clients across 55 countries. Collaborative lateral thinking, hard-earned experience, and multidisciplinary capabilities drive results and Ankura is unrivalled in its ability to assist clients to Protect, Create, and Recover Value. For more information, please visit, ankura.com.
Mystery shopping plays a critical role in litigation by providing objective, covert assessments of compliance, customer experience, and operational standards that can serve as crucial evidence in disputes.
United States Litigation, Mediation & Arbitration

Mystery shopping plays a critical role in litigation by providing objective, covert assessments of compliance, customer experience, and operational standards that can serve as crucial evidence in disputes. Its importance lies in uncovering factual information about how businesses adhere to laws, regulations, and internal policies, which may be central to legal cases involving consumer protection, franchise compliance, financial services, intellectual property, and other regulated sectors.

Mystery shopping helps document whether businesses follow rules such as age verification for restricted products, truthful product claims, adherence to safety standards, or anti-discrimination practices. In litigation, mystery shopping reports and findings serve as impartial evidence showing actual practices at points of sale or service. They reveal potential breaches or lapses in compliance that may otherwise remain hidden, supporting or refuting claims in court and regulatory investigations.

Dos and Do Nots for Mystery Shopping in Litigation Context

Dos

  • Set Clear and Specific Objectives: Define exactly what compliance or behaviour is being monitored.
  • Use Qualified Mystery Shoppers: Use individuals who match the target customer profile and can report objectively.
  • Emphasize Ethical Conduct: Ensure honesty and adherence to legal boundaries.
  • Document Evidence Meticulously: Collect detailed evidence, including reports, recordings — where legal, and photos. Preserve chain of custody to maintain admissibility.

Do Nots

  • Avoid Vague or Subjective Criteria: Do not rely on nonspecific questions.
  • Avoid Biased Shoppers: Avoid friends or loyal customers to prevent skewed reports.
  • Do Not Overstep Legal Boundaries: Stay within privacy laws and avoid illegal surveillance.

Evidence Management

Proper management includes maintaining a clear chain of custody, using timestamped, standardized reports, securely storing data, ensuring recordings comply with laws, and presenting findings factually without personal opinions.

Risk Management

Risks include legal challenges, ethical concerns, and reputational damage. Mitigation strategies involve legal compliance of protocols, internal policy communication, using mystery shopping as an improvement tool, and validating findings via multiple methods.

Case Study: Intellectual Property Infringement

In a recent case, our client — a leading chemical manufacturing company — discovered that some of its competitors were selling products to their customers that appeared remarkably similar to the client's original products. Customers claimed these competitor products were virtually identical to those of our client. Upon further investigation, the client uncovered that competitors were illegally relabelling and repackaging the client's genuine products, effectively passing them off as their own. This raised serious concerns of intellectual property infringement, brand dilution, and unfair competition.

Faced with potential loss of market share and damage to their brand reputation, the client needed indisputable evidence of this malpractice to present in court and initiate legal proceedings against the offending companies.

The client engaged our services to conduct rigorous due diligence and implement a mystery shopping program tailored to uncover and document this unethical practice. We developed a comprehensive mystery shopping approach that involved undercover purchasing of competitor products, meticulously collecting physical samples, photographic evidence, and detailed reports highlighting packaging and labelling discrepancies, while strictly managing the chain of custody to maintain evidence integrity, and performing comparative analyses to conclusively verify that the competitor's products were repackaged versions of the client's original products.

The independent, robust evidence compiled through the mystery shopping exercise formed a cornerstone of the client's legal submission. This clear, unbiased proof of intellectual property theft and product misrepresentation enabled the client to strengthen their litigation strategy with factual, verifiable data and file successful injunctions against the competitors to halt the illegal sale and distribution. Thus, protecting their brand integrity and reinforcing market confidence among their customers.

This case exemplifies how strategic mystery shopping combined with meticulous evidence handling can play a decisive role in uncovering malpractice in highly technical and competitive sectors like chemical manufacturing. It demonstrates the value of mystery shopping not only as a compliance tool but as critical support in intellectual property and commercial litigation.

How Ankura Can Help

At Ankura, we understand that successful litigation and protection against intellectual property infringement start with thorough due diligence and comprehensive background checks. We specialize in conducting in-depth investigations to uncover hidden risks and validate business practices professionally and discreetly.

Our due diligence and investigative services include:

  • Extensive Background Checks: We conduct detailed research on individuals and relevant entities to identify potential risks.
  • Targeted Due Diligence Programs: We design customized due diligence frameworks tailored to your industry and the specific legal challenges you face, ensuring all investigative steps align with regulatory and legal requirements.
  • Integrated Mystery Shopping with Due Diligence: Our approach combines undercover shopping with comprehensive background verifications, enabling us to gather direct evidence of malpractice while corroborating it with documentary and behavioural insights.
  • Robust Evidence Collection and Integrity Management: From collecting physical samples and photographic proof to maintaining strict chain-of-custody protocols, we ensure all data withstands legal scrutiny and supports effective litigation.
  • Analytical Reporting and Risk Assessment: Beyond evidence gathering, we provide detailed comparative analyses and background reports, highlighting gaps and vulnerabilities for informed legal and strategic decision-making.
  • Strategic Litigation Support: Working closely with your legal team, we help contextualize findings within broader compliance landscapes, strengthening your position in disputes and helping prevent future infringements.

By integrating rigorous due diligence and extensive background checks with proven investigative methods, Ankura Consulting equips clients with actionable intelligence and robust evidence to protect their intellectual property, defend their market position, and achieve successful legal outcomes.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

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