Convicted paedophile Rolf Harris kept notes in a diary on how to delete his internet history - after he allegedly accessed images of underage girls - it can now be reported.
Harris will not stand trial over the allegations that he downloaded the images, prosecutors have said.
The charges related to 33 illegal images in Harris' collection of thousands of legal adult pornographic images, and prosecutors decided not to pursue them after the entertainer was convicted of 12 counts of indecent assault, the court heard.
Southwark Crown Court heard he had looked at a site called "teeny tiny girlfriends" and accessed a picture of a girl who was "extremely young in appearance".
Prosecutor Sasha Wass QC said: "In the light of the 12 unanimous convictions on the counts that Mr Harris faced, the Crown prosecution Service has decided that it is no longer in the public interest to proceed with a trial on these four charges."
The images were among thousands in Harris's collection
But Harris's legal team told Mr Justice Sweeney, in previously unreportable legal arguments, that the models in the photographs were over 18, according to their identity documents provided by website bosses in the Ukraine.
They also maintained that the entertainer accidentally accessed the images when he clicked on links from mainstream porn sites.
Harris also allegedly clicked on other words including "youngest teen porn", "my little nieces" and "young teen girls".
The prosecution tried to use a witness called Geoff Cooper, who claimed that in 1978 or 1979 Harris was showing around naked pictures of children at the canteen at Radio Clyde in Glasgow but his evidence was ruled inadmissible.
Expert opinion gathered by both sides disagreed over whether the images were of underage girls, with the prosecution claiming one was of a child under 13.
This was denied by the defence, which maintained that all the models were adults and that the word "teen" could refer to someone of 18 or 19 years of age.
As the counts were debated during legal argument, Ms Wass said: "If it was an accident, it appears to be an accident he had a number of times."
Both sides agreed he had clicked on "young teen galleries" and "Russian virgins" while looking at porn.
FROM THE TRIAL:
Prosecutors alleged that he deleted the images because he knew they were illegal, but again the defence denied this, and said that according to the Internet Watch Foundation the websites were not known for putting up illegal pictures.
The veteran performer was charged with four counts of accessing indecent images by police, but he never entered pleas to them in court. During the legal argument, prosecutors suggested they might bring five charges against Harris.
His defence team argued that the charges should be dealt with separately to the indecent assault claims on the grounds that he could not receive a fair trial if they were presented together, and that he would suffer embarrassment with the court sifting through his porn collection.
Harris made a note in his diary about how to delete material from his computer, which he had owned since October 2010 before it was seized by police in November 2012, after seeking advice from a friend.
He had written: "1) start button 2) control panel 3) internet options 4) press delete under heading below history, make sure all boxes ticked."
A second note on another page said: "Kind girls safari; go to private browsing, go to button with black guy silhouette for privacy."
Ms Wass claimed this showed "the defendant was very anxious to delete this particular material", but the entertainer claimed he was simply embarrassed about having accessed adult porn.
Harris's defence team claimed that all he searched for was "kind girls" and "babes", which took him to adult porn sites, from where he clicked on adverts that led to the disputed material.
Barrister Simon Ray told Mr Justice Sweeney that 328 of the unique web page views that Harris generated, 39% of the total, were for adult porn, while only 31, which was four per cent, were for material that featured younger looking models.
In total 24 images found in the "allocated" memory of the computer were alleged to be illegal, and another nine that were found in an "unallocated" area, where deleted files were stored.
The defence argued that the charges should be thrown out after the identity cards were provided by the website companies, and prosecutors eventually decided not to pursue the counts.