On
/ɒn/
Definitions
- (prep.) Indicating the subject of a legal obligation, right, or liability.
The duty lies on the defendant to prove innocence.
- (prep.) Referring to the medium or basis by which a legal action or document operates.
The contract was signed on the conditions agreed upon.
- (adv.) Indicating continuance or progression in legal context.
The court will keep the case on for further hearing.
Commentary
In legal drafting, 'on' frequently establishes the basis or subject of rights and duties, so clarity about its referent is critical to avoid ambiguity.