If The Sun had the evidence, The Sun would have splashed the presenter's face all over the front page.
The only story the sun is standing over is that the parents made a complaint to the BBC and that the presenter remained on air.
The BBC also seem to be hampered by lack of forthcoming information and evidence based on the following statement:
"We treat any allegations very seriously and we have processes in place to proactively deal with them.
"As part of that, if we receive information that requires further investigation or examination we will take steps to do this. That includes actively attempting to speak to those who have contacted us in order to seek further detail and understanding of the situation.
"If we get no reply to our attempts or receive no further contact that can limit our ability to progress things but it does not mean our enquiries stop.
"If, at any point, new information comes to light or is provided - including via newspapers - this will be acted upon appropriately, in line with internal processes."