Answer:
Mens Rea
Step-by-step explanation:
Mens rea is defined as a mental element of an individual's intention so as to commit crime; or the knowledge that his or her action or the lack of action would seriously cause a crime that is committed.
In the context, Manuel defense is Mens Rea which results the prosecution fail to prove one or more than one elements of the crime committed. It usually create a doubt or leaves a doubt in the jury's mind which results in obstructing a prosecution from the meeting its burden of any such proof.