http://www.savvywoman.co.uk/c7-pages/c7s1.php?art_id=202<
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"State pension and divorce
The rules around claiming your
state pension on your ex husband’s National Insurance record aren’t
complicated, so it’s worth understanding exactly how they work. It's also
worth knowing that women and men can claim on their ex's National Insurance
record already.
• If you claim using your ex husband’s National
Insurance, it can be calculated either for the tax years up to the tax year
in which the marriage ended or the whole of your ex husband's record up to
the date of divorce (whichever gives you the bigger pension).
SAVVY TIP: You can only use your ex husband’s National Insurance record
if you don’t remarry before you reach state pension age.
• Your
ex husband doesn’t have to be told. If you’re using his NI record to claim
your pension, he doesn't have to know about it. All you need to provide is
his National Insurance number."
SERPS/second state pension has
to be valued and shared on divorce like non-state
pensions.
Forum 
England and Wales 
