Showing A Point of Law by John Maddox Roberts

Decius Caecilius Metellus is moving up in the world. He's won some money and glory fighting pirates in the Mediterranean and expects a speedy election to the office of praetor.

That all changes when a man he's never seen before publicly accuses him of corruption. Decius and his powerful family of Rome's leading politicians scramble to prepare a defense. However, the day of the trial they are greeted with a strange surprise on the steps of the courthouse: the corpse of the man who made the accusation. Now Decius is up against a much more serious charge of murder. It may cost him his chance to run for office, but not if he can help it.

Roberts once again masterfully sets Decius and his adventures against the background of this famed and crumbling Republic, enriching his story with historical detail and the immortal personalities of the day.