The London borough of Barking and Dagenham (yes, really) will fine you £80 if you don't clean up your dog's poop. How will they catch you? Doggy DNA:
In its pilot stage, only one or two local dog parks will be involved in the DNA testing, according to Eric Mayer, head of business development for Biopet Vet Lab. Anyone who wants to use those facilities will have to submit a canine swab, which cost about $45. (The fee will probably be split between the owner, the borough and the lab.) But by 2016, all 27 of the borough's parks and open spaces could be patrolled.
That seems a little invasive on the one hand, but on the other, it hurts dog owners everywhere when one or two lazy bastards fail to clean up after their pets. Still, who wants the job of matching samples to dogs?