Baltimore police seized dozens of illegal dirt bikes and all-terrain vehicles from a business over the weekend.City police said the department's Mobile Metro Unit executed a search and seizure warrant Saturday at a business in the 5300 block of Park Heights Avenue in northwest Baltimore.Police said officers seized 33 illegal dirt bikes and ATVs, in addition to other materials collected as evidence.Police said the investigation stemmed from video surveillance.Officers have seized 83 illegal dirt bikes in Baltimore City since the beginning of the year.Anyone with information is asked to call the police department's Dirt Bike Tip Line at 443-902-4474.