https://live.gnome.org/dconf/SystemAdministrators gives a bunch of information which just doesn't seem to apply to Ubuntu. Placing a file in:
sudo dconf update
Creates a binary file:
And a rough look inside this file appears to take the contents of /etc/dconf/db/local.d/locks into account but for all intents and purposes, this file appears to be ignored.
Does anyone know how to apply dconf locks in Ubuntu (tried and tested preferably)?