World War II Compensation Schemes
Where a payment of capital as compensation to a relevant person, relevant person's partner, relevant person's deceased spouse, or the relevant person's partner's deceased spouse, as a result of during the Second World War:

the amount of that payment will be disregarded as capital. Payments of compensation may be made in more than one stage, and all such payments should be ignored. This does not apply to war pensions.

If the payment was of £10000, as compensation for being held as a prisoner of war of the Japanese, then that amount of the person's capital will be ignored indefinitely.