Settlor interested trusts, appointments, life policies

[Nonimous]

Ms A's father (whom we shall call Dr B) died and left her everything. Mrs A then did a deed of variation to settle most of the estate on a trust for her (Mrs A's children).
As I understand it, therefore, Mrs A is the settlor of the trust and not Dr B.

A few years ago, Mrs A decided to wind up the trust and appoint everything out to be held on bare trusts for her two children, who, at the time, were both minors.

In 2010/11, there was a chargeable event gain on a life policy held on the bare trusts. Daughter is now no longer a minor, but son still is.

Am I right in thinking that Mrs A is taxable on her son's share of the gain?

[maths]

Am I right in thinking that Mrs A is taxable on her son's share of the gain?

Yes due the settlement provisions.