Emery-Wallis, 74, (Con) was jailed for nine months after he was convicted of indecent assault on two teenage boys more than 30 years ago (LGC, 22 June).
A specialist police officer has analysed the computer and sent a statement to the council confirming it was used to view pornographic material.
A report by the head of legal services, Jeff Patterson, said it did not prove Emery-Wallis himself had accessed the sites.
'However, if this were the case, then it is reasonable to suggest that Mr Emery-Wallis was responsible for ensuring the computer was put to appropriate use.'
Although there had been a breach of the rules, Mr Emery-Wallis' jailing meant no further action was necessary.
But Mr Patterson recommended that, when the policy on the use of computers is amended, it should contain an explicit reference to members being responsible for the use or misuse of their own computer.
Members of the standards and procedures committee deferred a decision until after the summer break.