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Spectra Forensics, Investigation Specialist

Case study · Disputes

The Variation Orders Paid the Kickback

A large civil sub-contract was won on a low bid and made profitable later, through variation orders approved by the project director whose relative's firm was paid 'consultancy'.

  • Kickbacks
  • Overbilling & inflated invoicing
  • Bid rigging & tender manipulation
  • Undisclosed conflict of interest
questionable variation value
~18%questionable variation value
withheld or recovered
US$3–5Mwithheld or recovered
projects reviewed
4projects reviewed
variations found genuine
⅓variations found genuine

01The situation

The bid was low. The final bill was not.

An EPC contractor's margins were eroding on several projects. One civil sub-contractor kept winning on the lowest bid and ending far above it, with variations approved by the same project director.

How it came to us

A cost overrun review found one sub-contractor's final bills far above its winning bids on several projects.

02How it worked

  1. 01The favoured sub-contractor bid low on items it expected to be reduced and high on items it expected to grow.
  2. 02After award, drawings and quantities were revised so that low-priced items shrank and high-priced items expanded.
  3. 03New 'extra items' were priced outside the contract schedule and approved at site.
  4. 04The project director approved most variations, often splitting them below the threshold for head-office review.
  5. 05The sub-contractor paid 'consultancy' fees to a firm run by the director's relative.
How the scheme workedAnonymised
Low, unbalanced bidSub-contractorEngineered variations(split below threshold)EPC company pays'Consultancy' firm(director's relative)Project directorawardapprovedpaymentsfeesbenefit

Swipe sideways to see the whole diagram.

  • Channels & documents
  • Outside parties
  • The organisation
  • Insiders involved
  • Repeats / feeds back

How it was hidden

Variations split below review thresholds, measurement books maintained by the director's team, and payments described as technical consultancy.

03The challenge

Separate genuine scope change from engineered variations, and test whether the approver benefited, across projects with thousands of measurement records.

What made it hard

  • Thousands of measurement records
  • Genuine scope changes mixed with engineered ones
  • Projects in several locations
  • Technical engineering judgements

Red flags that were there to see

  • Final bills far above winning bids
  • Variations split just below thresholds
  • Unbalanced unit rates in the winning bid
  • Same approver on most variations
  • Sub-contractor paying a 'consultant' with no visible staff

04Our approach

  1. Workstream 01

    Bid and variation analytics

    Compared bid rates, quantities and variations across projects.

  2. Workstream 02

    Engineering review

    Independent assessment of whether each major variation was justified.

  3. Workstream 03

    Approval trail reconstruction

    Who approved what, at what threshold.

  4. Workstream 04

    Counterparty due diligence

    Ownership and substance of the 'consultancy' firm.

  5. Workstream 05

    Interviews

    Project engineers, commercial staff and the sub-contractor.

The breakthrough

Variation analytics showed a repeating pattern across projects: the items priced high in the winning bid were the ones that grew. Due diligence on the 'consultancy' firm then tied the sub-contractor's payments to the approver's family.

05What we found & did

  • Unbalanced bidding followed by engineered quantity changes.
  • Variations split to avoid head-office review.
  • Payments from the sub-contractor to a firm run by the approver's relative.
  • About a third of the variations were genuine scope changes.
Contract value: as awarded vs final bill (indexed)
As awarded
100
Final bill
132

Illustrative

06The impact

The contractor withheld disputed amounts, recovered part of the overbilling through final-account negotiations, removed the director and introduced independent variation review above a single combined threshold.

questionable variation value
~18%questionable variation value
withheld or recovered
US$3–5Mwithheld or recovered
projects reviewed
4projects reviewed
variations found genuine
⅓variations found genuine

07Lessons for your business

The controls that would have stopped this, or caught it sooner:

  • Screen winning bids for unbalanced rates before award.
  • Aggregate variations per contract for approval thresholds.
  • Keep measurement independent of the approving project team.
  • Diligence any third party a vendor pays on your projects.

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