Mr Bates has worked on dozens of Operation Ore cases
A computer analyst who gave evidence in criminal trials has been given a six-month suspended sentence for perjury and making false statements.
Terence James Bates served as an expert witness in dozens of cases related to Scotland Yard's inquiry into internet child pornography, Operation Ore.
Leicester Crown Court heard Bates, known as Jim, lied by claiming he had a degree in electronic engineering.
A judge told Bates his career as an expert witness was finished
Bates was convicted of four counts of making false statements and one count of perjury.
His sentence was suspended for two years.