A Canadian man, Brandon Klayme, spent 18 months in prison after a child-luring investigation was thrown off course by a single-character typo in a police subpoena. Wisconsin investigators were seeking a Kik messaging user with a double underscore in their username, but mistakenly requested records for a similar name with only one underscore, leading them to Klayme instead of the real perpetrator. Despite no evidence being found on his devices linking him to the crime, he was arrested, tried and convicted, highlighting the serious consequences a small administrative error can have within the justice system.

The 2018 case began when a 12-year-old Wisconsin girl's mother found an inappropriate photo from an adult contacted via Kik under the username "fus__ro_dah". A subpoena error dropped one underscore, and Kik supplied an email address linked instead to Klayme, whose Canadian IP address was traced by Halifax police to his home. Although searches of his phones and laptops turned up no relevant evidence, he was charged with luring, providing sexual material to a child, and possessing child abuse imagery, convicted in 2023, and sentenced in 2024. The typo went unnoticed until his appeal team uncovered it, prompting Nova Scotia's Court of Appeal to overturn the conviction, stating he was "factually innocent" and "should never have been charged, let alone convicted."