Leave it to Hong Kong to come up with a brilliant method for stopping litterbugs.
But how does the city get pictures of their faces?
This is where it gets genius: The organization actually analyzes DNA samples found on the litter -- along with demographic information -- to create digital renderings of each offender's face.
Context clues, such as location, litter type and the like, are factored in when creating the renderings to create a more accurate representation of the offender. If the litter is, for instance, a cigarette, it means the litterbug is likely a smoker.
Knowing this, the artist or scientist creating the portrait can alter certain aspects -- such as skin texture or wrinkles -- to better reflect that of a smoker.
It's pretty brilliant.