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Guide to Combating Corruption & Fraud in Infrastructure Development Projects

  • Detection
    • Complaints
      • General initial interview questions
      • How to Generate Complaints and Reports
      • List of fraud reporting sites for Multilateral Development Banks
    • Red Flags
      • Red Flags Listed by Project Cycle
      • “Visible red flags” of Implementation Fraud
      • Proactive Fraud Detection Tests
    • Due Diligence
      • “Top Five” Due Diligence Background Checks
      • Free and Subscription Internet Sites
      • Local and On-Site Due Diligence Checks
      • Due Diligence Service Providers
  • Proof
    • Proving Common Schemes
      • Corruption Schemes
      • Bid Rigging Schemes
      • Collusive Bidding Schemes
      • Fraud Schemes
      • The Basic Steps of a Complex Fraud and Corruption Investigation
    • Elements of Proof for Sanctionable Offenses
      • Elements of Proof of Corrupt Practices
      • Elements of Proof of Obstructive Practices
      • Elements of Proof of Coercive Practices
      • Elements of Proof of Collusive Practices
      • Elements of Proof of Fraudulent Practices
  • Evidence
    • The Basics of Evidence for Investigators
  • Prevention
    • Anti-fraud Resources
Home » Detection » Red Flags of Corruption, Bid Rigging and Other Schemes » Red Flag: Similarity in Bids; Apparent Connections Between Bidders

Red Flag: Similarity in Bids; Apparent Connections Between Bidders

Apparent connections between bidders involved in collusive bidding schemes can be revealed by, among other things:

  • Common addresses, fax or telephone numbers, common spelling errors or typos, on supposedly competing bids;
  • Physical similarities in bid documents submitted by different bidders, such as common formatting or type faces;
  • Sequentially numbered bid securities submitted by different bidders, indicating that one person purchased all of the securities at the same time;
  • Similar or identical line item bid prices, indicating that the bids were prepared jointly or by one person.

Do a due diligence background check on companies that appear to be connected to look for evidence of common ownership or undisclosed affiliations.

This red flag can indicate the following scheme:

  • Collusive bidding

Click on the scheme listed above to see more information on the scheme, a more complete listing of its red flags and steps to determine if it is actually present.

Category: Red Flags of Corruption, Bid Rigging and Other Schemes

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