The Infringing Website List (IWL) will be an "up-to-date list of copyright infringing sites" that can be cross-referenced by those third parties, in the hope that they will pull their advertising from those sites.
"If an advert from an established brand appears on an infringing website not only does it lend the site a look of legitimacy, but inadvertently the brand and advertiser are funding online crime," said Detective Chief Inspector Andy Fyfe from the City of London Police Intellectual Property Crime Unit (Pipcu).
Verified by who? This appears to be the police acting as judges, possibly in what should be civil cases.
Also, isn't it interesting that this is clearly aimed at sites that infringe big media's copyrights, but neither the police, nor anyone else funded by our taxes will do anything about scrapers who copy huge amounts from lots of small sites?