Hello all again!

I have a database which is under construction, and it has to be assessed and
certified by our medico-legal people.

One requirement is that any clinical notes entered into a particular memo
field in a table table CANNOT and I stress CANNOT be deleted, removed,
altered and so on.

This is a legal requirement.

How do I achieve this?
I realise that this may be complex, but I would appreciate any help.
Yes, the database is secure, with user logins and passwords, usergroups,
etc...

TIA

DubboPete