All who have paid their National Insurance contributions should be entitled to use the NHS.
A point I would like to make is that Fire and Police services are linked to local Aurthority pension schemes which are taxable at source. Lots of other pensions are subject to double taxation treaties and therefore after you have done the paperwork you can elect to have it paid to you in the UK tax free and if you live in Turkey you will get your pension free of tax as pensions over here are not taxable. The Police, Fire men who have retired have NO choice in the matter. Therefore after retiring from those dangerours jobs they still pay UK tax, have fully paid up in NI and are not entitled, along with everyone else, to NHS care which we have all paid for.
At least those who have tax free pensions could use that saving towards health Insurance here.
Everyone who has paid their NI contributions etc should be entitled to claim for what they have paid.
Fi