The Advertising Standards Authority received a complaint about the TV ad challenging whether the claim about the number of people it helps was misleading and could be substantiated.
Finally, it has been suggested that market failure could be substantiated by demonstrating that private training returns are relatively high in comparison to training incidence, social returns to training, or other investments.
If it emerges that even part of the allegations could be substantiated, a very strongly worded denial could lead to accusations of lying and would prolong the story.
"No accusation against this office, or any employee, could be substantiated.
Tata also questioned whether the ad's claim that the pyramid bag meant "the tea has more room to move, freeing the great fresh taste" could be substantiated.
They argued the claims were misleading and could be substantiated because TripAdvisor could not verify all the reviews on its sites and therefore could not prove all were genuine and from real travellers.
Those familiar with the work said this was more complex than the cases of Kosovo and Croatia because they were trying to determine whether a charge of genocide could be substantiated.
The agency itself disclosed the charges in February 2002, and a five-month investigation by the internal oversight office found that of the 43 possible cases, 10 could be substantiated, none involving a United Nations staff member.
Investigations by the agency and by an independent watchdog, the Treasury inspector general for tax administration, found that none of the first 830 complaints of taxpayer harassment filed under the 1998 statute could be substantiated.
