enforce on

enforce on (someone)

To make one subject to something, such as a rule or law. A noun or pronoun can be used between "enforce" and "on." Are you really going to enforce this law on me, your own sister?
See also: enforce, on

enforce something on someone

to make a law effective with regard to someone. I can't enforce this on her if I don't enforce it on you. This law can't be enforced on anyone.
See also: enforce, on