Sir Alan Parker is a remarkably well-connected PR mogul who can claim allegiances across the political divide.
Sir Alan, 62, intervened personally to address accusations against the two men, the Daily Mail has been told.
A Save the Children source said that in both cases Sir Alan personally took control within 48 hours, overriding the charity's human resources rules.
It is thought to have advised more than a quarter of FTSE 100 listed firms.
Said to be a natural Labour supporter, Sir Alan was involved in attempts to rebrand Gordon Brown's public image during his ailing premiership. But the PR guru has also holidayed with David Cameron.
The source said: 'There were HR procedures that were in place to deal with Brendan and Justin.'Lawyers were contacted …