A Hong Kong court dismissed a gun charge Monday against a Washington state senator who had been arrested after he carried a gun into the Chinese territory in what he called an “honest mistake.”

Republican Jeff Wilson self-declared that he was carrying the gun at the airport Oct. 21, has a clear criminal record in Hong Kong and made his admission in an open manner, the prosecution said at the court hearing.

Principal Magistrate Don So approved the arrangement for a bind-over order rather than a plea to possessing an unlicensed firearm, saying he was inclined to believe Wilson was innocent.

The bind-over order requires Wilson to keep the peace and avoid committing further firearms offenses for two years. The magistrate said Wilson would be fined 2,000 Hong Kong dollars ($255) for breaching the order if he doesn’t comply.