Set 71408-1 : Peach's Castle - Expansion Set [(unsorted)] [BrickLink]
Swamp Police Helicopter polybag : Set 30311-1 | BrickLink
Set 30222-1 : Police Helicopter polybag [City] [BrickLink]
Set 42145-1 : Airbus H175 Rescue Helicopter [(unsorted)] [BrickLink]
LEGO 66427 City Police Super Pack 4-in-1 | BrickEconomy
Heavy-Duty Helicopter : Set 4439-1 | BrickLink
BrickLink - Part 3007pb05 : LEGO Brick 2 x 8 with 'RESCUE' on Yellow Arrow Pattern on End (Sticker) - Set 4439 [Brick, Decorated] - BrickLink Reference Catalog
Police Helicopter Chase : Set 60243-1 | BrickLink
Set 4439-1 : Heavy-Duty Helicopter [City] [BrickLink]