Primrose53, that surprises me, as it is one i have not had before.
Deedaa Many years the father of a friend found an unknown charge on his credit card, contacted the credit card company, who investigated, said it was an error and repaid the money. A year later the police turned up as the mischarge was from a child porn company and his number had turned up on a list of credit card numbers of customers. They took away his computer and ransacked his house, they could find absolutely nothing associated with child pornography.
He told them about the mischarge, the credit company confirned it had been an error and had been paid back. This was all ignored. He was up in court and in the papers, his friends ostracised him, his marriage broke down, he could not see his grandchildren and eventually my friend had a breakdown.
When the case finally came to court, the CPS said they were withdrawing all charges, as it was quite clear it was a computer mischarge, which had been highlighted at the time and there was no evidence he had any interest in child pornography.
Deedaa your DH was very very lucky.