For nearly fifty years, beginning in 1771, he taught all fields of legal study at the Athenaeum Illustre in Amsterdam.
His work mirrors the decline of the significance of Roman law in legal practice.
In 1798, Cras rose to prominence as the leading member of a commission charged with drafting national codes of law.
The draft codes, published in 1804, appeared overly dogmatic and as a result never became law.
This article about a Dutch lawyer, judge or jurist is a stub.