Ummm - all the people who are saying "Just say it was an unsecured wireless point and you'll get off".
Now, are you using your vast years of experience as a lawyer saying this or, as is far more likely, are you either "pub lawyers" or quoting from the Ladybird book of English law?
Well I have a law degree, am studying for a masters in Intellectual Property Law, my dissertation is on the subject of online piracy, I had the statute book open when I wrote my reply and I've previously confirmed what I wrote with a lecturer, who's a practising barrister - but I could always be wrong if you 'know someone'...
@platypus - you're not required to prove that it wasn't you downloading to the extent that you claim - I'll get to that at the end of the post though.
Information Society Directive said:
Exceptions and limitations
1. Temporary acts of reproduction referred to in Article 2, which are transient or incidental [and] an integral and essential part of a technological process and whose sole purpose is to enable:
(a) a transmission in a network between third parties by an intermediary, or
(b) a lawful use
of a work or other subject-matter to be made, and which have no independent economic significance, shall be exempted from the reproduction right provided for in Article 2.
The CDPA itself states the same under s28A, although it excludes programs and databases - though only because each says the same in their own section of the CDPA.
S28A has never been tested at trial (just went and double checked westlaw and lexisnexis in case anything new had come out since I last checked), but that's not a reason to believe that it wont hold strong.
As to the issue of burden raised by platypus it'll depend on whether you're being charged with a criminal offence under the CDPA or sued under a civil provision. As in this case we're looking at a civil offence then the standard civil burden will apply - you'll thus have to prove a 51% likelyhood that it was transmitted to a third party. This is something very very simple to prove given how anyone could access the network and there was thus a potentially unlimited number of people accessing the network. Having said that, if I was mooting the case, the first thing I'd do is challenge the burden status, trying to get it to be set as an evidential burden; that is a burden just to make the issue active. I say this because firstly it's just a presumption I'm making that the courts wouldn't by default see it as a purely evidential burden and, secondly, you'd have to demonstrate the possibility of something existing where no proof is normally present, which, in circumstances like that, is normally only pegged as an evidential burden.