Case law is created by the judicial branches of governments. Each state creates case law through its state courts. Similarly, federal courts establish federal case law. Case law is usually made after a trial has concluded and one of the parties has appealed the case. This may result in a review of parts of the trial by a higher court — a process called appellate review. When the appellate court publishes its opinion on a case, that opinion may state, and thereby create, new case law.
The effectiveness of case law arises out of the doctrine of stare decisis (Lat.) according to which once case law is established, it must be followed by lower courts in other similar cases. Stare decisis generally does not strictly bind appellate courts because they can overturn their own case law when justified by new conditions or better understanding of the issues.
Vocabulary
statute статут, законодательный акт парламента
ordinance указ, декрет, постановление
to enact a law принимать закон; вводить закон
authority власть, полномочие
rules and regulations правила и нормативы
administrative agency правительственные учреждения
to invalidate лишать законной силы
void недействительный; не имеющий юридической силы
to allocate распределять
system of checks and balances система сдержек и противовесов
Statutory Law статутное право (право, выраженное в законах, «писаный закон»)
Case Law прецедентное право
stare decisis букв. «стоять на решенном» “to abide by, or adhere to decided cases”
to bind обязывать, связывать, ограничивать
issue предмет тяжбы
to delegate передавать (полномочия), поручать
to overturn опровергать, отменять
IRS Internal Revenue Service налоговая служба/ инспекция