@Loyal Commenter.. Google is your friend...
Here's the law...
First check out :
http://www.homeoffice.gov.uk/police/extradition-intro1/extrad-part-1/
Pay attention to the following 2 paragraphs:
"Extradition hearing
The extradition hearing should normally take place within 21 days of arrest.
If the judge is satisfied that the conduct amounts to an extradition offence and that none of the bars to extradition apply (the rule against double jeopardy; extraneous considerations; passage of time; the person’s age; hostage-taking considerations; speciality; the person’s earlier extradition), he is required to decide whether the person’s extradition would be compatible with the convention rights within the meaning of the Human Rights Act 1998.
If the judge decides that question in the affirmative, he must order the person to be extradited.
Dual Criminality Test
The framework decision contains a list of 32 categories of offence for which the 'dual criminality' test is not needed. The offence must carry a maximum sentence of at least 3 years in the issuing state.
If the conduct for which extradition is sought is not covered by one of these list offences, then the conduct must be an offence in both the issuing and executing states. Also, if any of the conduct for which extradition is sought was carried out outside the issuing state, the conduct must be an offence in both the issuing and executing states."
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So the argument of 'duality' that is where the charge has to be a crime in both locations is moot if the charge is one of the 32 categories...
Which leads us to this site:
http://mle.ncalt.com/MLE/data/PL_LGL_NLD_01_02/D12400.asp
Note the following:
"Notes:
(i) Schedule 2 contains the European framework list, which is reproduced from article 2.2 of the European framework decision, as defined in section 215.
(ii) Schedule 2 can be amended, by order made by the Secretary of State, thus ensuring the list corresponds to any changes made to the European framework list.
(iii) The UK has reduced the sentence requirement for extraditions for the 32 generic offence categories (listed below) from 3 years down to 12 months.
(iv) 32 'offences' are listed, which in reality they are better described as forms of conduct (as they are in schedule 2), for the descriptions are generic rather than of a detailed legalistic nature - the purpose is to describe broadly since there are differing versions and understandings of offences, even of common offences such as homicides, across the European Union. "
And now the fun part.
In the list... you can see the following charge:
"28 Rape."
So in a nut shell, Assange is being charged with RAPE so that the duality test does not apply.
See isn't this fun.
The more you ask, the more you know.