On 25-Jan-2013, Roland Perry <
rol...@perry.co.uk> wrote:
> Then there are numerous who are <something>@<county>.
pnn.police.uk, but
> none whose county is "met", but some whose "county" is npia (etc).
Substitute "force" for "county" and pnn makes more sense. "PNN" stands for
"police national network", it's a secure (well as secure as it can be)
system that allows forces and other government secure systems such as "gsi"
"government secure internet" to exchange restricted information. Baring in
mind that the classification is (in order from the bottom up) "not
protectively marked", "restricted", "classified", "secret" etc etc you can
see that only low level stuff is entrusted to it. I can assure you that the
Met, along with BTP, the Scottish forces, MODPLOD, the Dover Harbour Police
indeed all police forces in the UK bar the pretend ones run by local
councils are on the system.
When you send an email to [identity]@[force].
pnn.police.uk from a secure
system then it's delivered through the pnn, if you send it via a unsecured
system then the pnn mail handling gizmos will divert the email to
[identity]@[force].
police.uk ... and vice versa. Which in effect means that
the "pnn" address will always work and will the non pnn one. Additionally
although all forces follow the convention firstname.lastname@ ... (with
minor variations such as adding a number at the end for folks with the same
name) they also handle aliases in the form of "warrant number"@etc or "pay
number"@etc in the case of civil staff and some forces will also handle
"abbreviated firstname.lastname@etc" such as Andy.Smith@ instead of
Andrew.Smith@ ...
Which means that all the following would work and reach the same person ...
assuming of course there was a police officer called Jonothan Doe with a
warrant number of w12345 retained by "madeup" Police Service ...
Jonothan.Doe at
madeup.pnn.police.uk
Jonothan.Doe at
madeup.police.uk
w12345 at
madeup.pnn.police.uk
w12345 at
madeup.police.uk
and it would be likely that these would as well ...
Jon.Doe at
madeup.pnn.police.uk
Jon.Doe at
madeup.police.uk
The gsi network works the same way, to which we add special arrangements
with (say) local councils for the exchange of (say) child protection
information which are handled by one off systems trusted to speak with the
pnn and gsi ... at which point I'll get my hat :-)