Not content with merely reclaiming lands, and following the examples of great leaders before him, he called for new laws to help Unite his empire. In doing this, Rome's ancient laws, also known as the Twelve Tables, were broken down into categories. Outdated laws were done away with, and complex laws were simplified.
Desiring the Empire to thrive, Justinian also added new laws dealing with the fair treatment of those within the Empire. For instance, one of his laws held that a person is innocent until proven guilty.
Justinian's new laws, influenced by the Twelve Tables, are known today as the Corpus of Civil Law or Justinian's Code of Laws. Completed around the year 529, these laws have formed the basis for the judicial systems of the Western world.