Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Citator
open-in-new
<p>In <a href="/facts/Legal_research/Lxa49zFd">legal research</a>, a citator is a <a href="/facts/Citation_index/JD6qja3B">citation index</a> of legal resources, one of the best-known of which in the <a href="/facts/United_States/P0sCdLe5">United States</a> is <a href="/facts/Shepard%27s_Citations/aR5A9Xaq">Shepard's Citations</a>. Given a reference of a legal decision, a citator allows the researcher to find newer documents which cite the original document and thus to reconstruct the judicial history of cases and statutes. A citator can also be used to determine whether a statute or regulation has been amended, repealed, superseded, or held unconstitutional. Using a citator in this way is <a href="/facts/Colloquially/HvEweYjS">colloquially</a> referred to as "Shepardizing". </p>