There is another link on Law - BuenChic may be able to locate
the account on death of one party is still operable by the other - which is convenient because sole accounts are frozen and unusable on death until probate is granted
however - altho each party can draw on the funds - the ownership is partitioned (divided) as to who contributed - see BuenChic
this is as a result of a recent ish case
rather obvious really - but defeated my family for one.
With spouses who are usually the joint owners - this doesnt really arise as transfer between spouses (but not parent and child) are IHT- free
simples