The old law on provocation has been reformed to provide more protection to victims, for example where sexual infidelity is concerned.
It also affords more protection to battered women who may not have been able to satisfy the requirement under the old law for the loss of control to be sudden.
It can be argued that the objective test for loss of control is illogical as a person with a normal degree of tolerance and self-restraint would not kill in the first place.
However, if the partial defences did not exist, it is argued that juries may be tempted to acquit defendants out of sympathy.