A drug ring in Taiwan that delivered narcotics straight to customers' homes has been broken up, with police arresting a dealer during a parking-lot handoff.

• The ring ran like a courier service, dropping drugs at buyers' doors.
• It targeted middle-aged and older customers rather than the usual young crowd.
• Police moved in and arrested a dealer at a parking lot.
• The delivery-to-your-door setup made the operation harder to spot.

Outlook: Expect police to trace the network's other couriers and suppliers as the case widens.