Under interstellar law, sir, this is a Federation vessel.

It had seemed more and more unlikely to her that this gentle, self-effacing woman would ever have chosen a career that defied anyone, let alone interstellar law.

But my duty under both interstellar law and Starfleet regulations is clear.

By interstellar law, a system's territorial limit extended half a standard light-day from its primary.

"Even when they've led him to defy a superior's orders, and maybe even violate interstellar law in the process?"

You have broken interstellar law, both commercial and criminal.

It's just that according to interstellar law, the government of the accused person must be notified prior to the commencement of legal proceedings.

"God knows how many interstellar laws I'd be breaking giving booze to an underage ahen."

That is interstellar law.

Ultimately interstellar law and the treaty between us and the Cardassians kicks in.