important legal maxim

Alibi

at another place, elsewhere. 

Amicus Curiae

A legal expert appointed to assist the court and act as a friend of the court 

Ab Initio

From the very beginning or from the outset. 

Actio personalis moritur cum persona

A personal right to legal action dies with the individual. In other words, if the person passes away, their right to sue ceases. 

Audi alteram partem

No one should be condemned without being given a chance to be heard.  

Actus non facit reum nisi mens sit rea

An action doesn't render someone guilty unless there is a guilty state of mind accompanying it.

Actus reus

Wrongful conduct or guilty action.

Actus me invito factus non est mens actus

When an action is done without my consent, it is not regarded as my own deliberate act.

Ad hoc

For the specific purpose or case at hand.