The thief is a character appearing in Pokémon: BW Rival Destinies.
Season 15: BW Rival Destinies
The thief had a Ducklett steal some fruit from Driftveil Market, then proceeded with the get-away. They were stopped by Accelgor and Accelguard, but since they failed, Linda and Timburr arrived to stall the thief until Jenny came to arrest the thief.
|BW059||The Mighty Accelguard to the Rescue!|