BrickLink - Part 3069bpb0111 : LEGO Tile 1 x 2 with Groove with White 'POLICE' Thick Font on Blue Background Pattern (Sticker) - Sets 7235-2 / 7236-2 / 7744 / 60023 [Tile, Decorated] - BrickLink Reference Catalog
BrickLink - Part 3069bpb0447 : LEGO Tile 1 x 2 with Groove with White 'POLIZEI' on Blue Background Pattern (Sticker) - Sets 7235-2 / 7236-2 / 7744 [Tile, Decorated] - BrickLink Reference Catalog
In set 7744-1 | Brickset: LEGO set guide and database
BrickLink - Part 4215bpb33R : LEGO Panel 1 x 4 x 3 - Hollow Studs with Dark Gray Dog Head Facing Right and Blue Stripe Pattern (Sticker) - Set 7744 [Panel, Decorated] - BrickLink Reference Catalog