How do you tell someone responsible for an action?

Responsibility is 'liable to be called to account, answerable'.


Responsible individual is 'one who is morally accountable for actions, capable of rational conduct, of good credit or position or repute, respectable, apparently trustworthy'.

Responsibility is an obligation owed, it cannot be delegated. No superior can escape responsibility for the activities of subordinates, for it is the superior who has delegated authority and assigned the duties.