In 1999 Scott Watson was convicted of murdering the pair, and was sentenced to life imprisonment with a minimum non-parole period of 17 years.
The woman whom Bell believed to be Olivia had told of how Bell's alleged accosting her in the street and taking her photo, combined with his distribution of leaflets throughout Blenheim showing her photo, caused her anxiety and led to her having a panic attack while she was out with her children.
She had needed medication from her doctor to cope.
But Bell, who represented himself at the trial, said he had taken necessary action.
"I stand on the side of right," he said.
He hoped that if he was ever wrongly convicted of a crime then someone would stand up for him as he was doing for Watson.
It was not his intention to cause the woman any harm.
Bell had decided the woman was Olivia Hope, that she was suffering from Stockholm Syndrome, and that he had to put together an "evidence package" to prove this. Stockholm Syndrome is a condition in which hostages begin to side with their kidnappers.