Moral pressure is involved in the case of
Connivance- noun_willingness to allow or be secretly involved in an immoral or illegal act.
Champerty- noun(LAW)_an illegal agreement in which a person with no previous interest in a lawsuit finances it with a view to sharing the disputed property if the suit succeeds.
Rescission- noun(FORMAL)_the revocation, cancellation, or repeal of a law, order, or agreement.