From Power of Attorneys:
Civil law — Wikipedia
Quirky American derivation of Roman law wherein lawyers and judges routinely manipulate a written collection of laws that apply to everyone but the lawyers and judges themselves, who are exempt from observance of said laws; practiced by uncivil lawyers in an uncivil environment and administered by uncivil judges in uncivil courtrooms.
Common law — Wikipedia
Kooky legal doctrine wherein judges are allowed to make up the law as they go along, citing precedents of other knuckle head judges as the basis for their home cooked decisions. Under the table payoffs and campaign contributions from lawyers pleading their cases are common components taken into consideration when common law is determined by judges. See “Campaign contributions.”