. . . the committee is still concerned that no apparent effort was made by FIFA to investigate these allegations when they were put to it, and that other allegations - specifically those made by Lord Triesman in evidence to the committee - remain.Since it was Lord Treisman who levied the allegations, then how about the UK Parliament opening an investigation? Recommendations offered in the passive voice usually don't get too far.
Lord Triesman's testimony from last May can be found below.