On what grounds could the Roman Senate consider it a crime when Julius Caesar crossed the Rubicon?

JaneofGaunt

By crossing the Rubicon, Caesar had committed treason. http://www.eyewitnesstohistory.com/caesar.htm Born with unbridled political ambition and unsurpassed oratory skills, Julius Caesar manipulated his way to the Roman Legionary position of consul of Rome in 59 BC. After his year of service he was named governor of Gaul where he amassed a personal fortune and exhibited his outstanding military skill in subduing the native Celtic and Germanic tribes. Caesar's popularity with the people soared, presenting a threat to the power of the Senate and to Pompey, who held power in Rome. Accordingly, the Senate called upon Caesar to resign his command and disband his army or risk being declared an "Enemy of the State". Pompey was entrusted with enforcing this edict - the foundation for civil war was laid. It was January 49 BC, Caesar was staying in the northern Italian city of Ravenna and he had a decision to make. Either he acquiesced to the Senate's command or he moved southward to confront Pompey and plunge the Roman Republic into a bloody civil war. An ancient Roman law forbade any general from crossing the Rubicon River and entering Italy proper with a standing army. To do so was treason. This tiny stream would reveal Caesar's intentions and mark the point of no return. Aug 23 10, 12:55 PM