
maidenholmes:
To clarify: Do you need both to switch? There are a number of dramas where one identical twin is incapacitated and the other takes her place.
they both need to switch. if only one takes on the identity of the other person, whether that person is dead or alive, it doesn't count. if a twin, for example, dies, but their sibling had switched/been switching with them prior to their death, it counts.