Answer:
Moral Agent
Explanation:
A moral agent in ethics is a term that describes a person or individual who has the ability to determine which is right from wrong, and he is legally to be held accountable for his or her own actions.
Moral agents, who can be a lawyer or attorney some times, has a moral responsibility not to cause unjustified harm.
Hence, in this case, refusing to call a witness that i know will not tell the truth would indicate my view that i am serving as my client’s Moral Agent.
Note that, ordinarily, moral agency is ordained or assigned only to individual who can be held responsible for their actions.