Apply statistical screening techniques to identify suspicious price variance patterns across tenders.
Warehousing & Procurement
Detecting Bid Rigging and Abnormally Low Tenders Through Data Screening
Learn statistical and behavioural screening techniques to detect bid rigging, cover pricing and abnormally low tenders, and to build the evidence file needed to act on suspicious bidding patterns.
🗓️Duration5 training days
📚Content4 modules · 8 sessions
🎓On completionAccredited attendance certificate
About the programme
Course Overview
Bid rigging rarely announces itself; it shows up as a pattern of prices that look competitive at a glance but repeat suspiciously across tenders, or as a bid so low it cannot possibly cover the supplier's costs. This course teaches procurement and audit professionals how to use statistical screening and behavioural indicators to detect bid rigging, cover pricing and abnormally low tenders before contracts are awarded, and how to build an evidence file that stands up to legal and competition-authority scrutiny. Participants learn screening techniques such as price variance analysis, bid rotation pattern detection across repeated tenders, and market-share stability checks that flag when the same suppliers seem to take turns winning. The course covers identifying abnormally low tenders using cost-based benchmarks and procedures for querying a suspiciously low bid without breaching fairness rules, as well as behavioural red flags such as identical formatting errors across supposedly independent bids or joint withdrawals. It also addresses what to do once a pattern is found: documenting findings for escalation or referral to a competition authority, and designing tender processes, such as sealed bidding and randomised lots, that make collusion harder to sustain. A workshop analysing anonymised tender data builds practical screening skills participants can apply to their own records.
Expected Learning Outcomes
Detect bid rotation and market-share stability patterns suggesting suppliers are coordinating tender outcomes.
Identify abnormally low tenders using cost-based benchmarks and query them without breaching fairness rules.
Recognise behavioural red flags such as identical errors or coordinated withdrawal across supposedly independent bids.
Document screening findings into an evidence file suitable for internal escalation or regulatory referral.
Design tender structures such as sealed bidding and randomised lots that make collusion harder to sustain.
Brief procurement and legal colleagues on competition law obligations when handling suspected bid rigging.
Who Should Attend
Procurement and category managers responsible for evaluating and awarding competitive tenders.
Internal audit and forensic investigation staff screening procurement data for fraud and collusion.
Public sector procurement officers subject to competition and fair-tendering obligations.
Legal and compliance advisers assessing competition law risk in procurement processes.
Procurement analysts building statistical screening tools for tender data.
Category strategists designing tender structures resistant to collusive bidding.
Course Modules
Select any module to see its sessions and points.
01Understanding Bid Rigging Mechanisms
2 sessions · 8 points
Session 1Recognising Common Collusion Schemes
- Explain bid rotation, cover pricing, market allocation and subcontracting schemes used in bid rigging.
- Identify market conditions, such as few suppliers or repeated tenders, that make collusion easier to sustain.
- Distinguish legitimate competitive behaviour from patterns that indicate coordination between bidders.
- Review documented case patterns to understand how collusion schemes typically surface in tender records.
Session 2Building a Screening Programme
- Define the scope of tenders and categories to include in an ongoing bid-rigging screening programme.
- Assemble historical tender data in a format suitable for statistical analysis across multiple bidders.
- Set thresholds and triggers that flag a tender for deeper investigation rather than automatic conclusions.
- Align the screening programme with legal and audit functions to ensure findings are handled appropriately.
02Statistical Screening Techniques
2 sessions · 8 points
Session 1Analysing Price Patterns
- Apply price variance analysis to detect unusually narrow spreads between competing bids over time.
- Calculate cover-price indicators where a losing bid appears deliberately set just above the likely winner.
- Track price relatives between suppliers across multiple tenders to detect a consistent pricing gap.
- Use statistical tests to distinguish genuine market pricing convergence from suspicious uniformity.
Session 2Detecting Bid Rotation and Market Allocation
- Track win rates and rotation patterns among a fixed group of suppliers across successive tenders.
- Identify geographic or customer allocation patterns suggesting suppliers have divided the market.
- Analyse subcontracting relationships between apparent competitors that may indicate coordination.
- Cross-reference bidder participation and non-participation patterns for signs of orchestrated behaviour.
03Handling Abnormally Low Tenders
2 sessions · 8 points
Session 1Identifying and Querying Low Bids
- Set cost-based benchmarks to identify a bid that appears abnormally low relative to the likely cost of delivery.
- Query a suspiciously low bid through a structured written process without breaching fairness obligations.
- Assess supplier responses to a low-bid query for credibility, including cost breakdown and capacity evidence.
- Decide whether to reject or accept a low tender based on documented evidence rather than assumption.
Session 2Managing Risk From Accepted Low Bids
- Increase contract monitoring and milestone checks where an accepted bid carries elevated delivery risk.
- Require performance security or bonding where a low bid raises concern about supplier viability.
- Track post-award performance of previously flagged low bids to validate the screening approach.
- Feed outcomes from accepted low bids back into future benchmark-setting for similar categories.
04Investigation, Evidence and Prevention
2 sessions · 8 points
Session 1Building an Evidence File
- Document screening findings, underlying data and analysis methods in a structured evidence file.
- Preserve original tender documents and communications relevant to a suspected collusion pattern.
- Coordinate with legal counsel before contacting bidders or referring findings to a competition authority.
- Maintain confidentiality during an investigation to protect its integrity and the organisation's position.
Session 2Designing Collusion-Resistant Tenders
- Structure sealed bidding and randomised lot arrangements that make coordinated bidding harder to sustain.
- Vary tender timing and specification detail to reduce predictability that eases collusion.
- Encourage market entry by lowering barriers for new or smaller suppliers to bid competitively.
- Review and refresh tender design periodically based on screening results and evolving market structure.
What the participant receives
4 course modules
A structured syllabus
8 training sessions
across 5 days
32 detailed points
Applied, detailed content
Accredited attendance certificate
On completing the programme
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