Liquid Leadership by Subject

It would be possible to develop the Interactive Democracy (ID) idea to provide a system which would allow each voter to choose a different "Leader" for each of a number of subjects: Liquid Leadership, Liquid Democracy or delegated voting. For example, you may choose a trusted medical professional for votes about health care, an economist for votes about finance, a policeman for votes on law and order and a scientist for votes on the environment.

You should be able to terminate your delegated vote at any time and the system must have a secure way of recording how your vote was cast by registering a receipt to your ID account.