Editing Local usage details (section)

{{short description|Technical data of local telephone calls}}
'''Local usage details''' (LUD) are a detailed record of [[local call]]s made and received from a particular phone number.<ref>{{Cite news |last=Elder |first=Jeff |date=April 25, 2003 |title='Pull their LUDs'? TV cop Talk, 10-4 |pages=2A |work=[[The Charlotte Observer]] |via=[[Newspapers.com]]}}</ref>  These records are regularly available to [[police]] in the [[United States]] and [[Canada]]<ref>{{Cite news |last=Nettle |first=Joan |date=5 November 2004 |title=Information Please |pages=27 |work=[[Edmonton Journal]] |via=[[Newspapers.com]]}}</ref> with a [[court order]], and were traditionally subject to the same restrictions as [[telephone tapping]].

In the United States, LUDs may be legally used by the police without first obtaining a [[warrant (law)|warrant]], as determined by ''[[Smith v. Maryland]]'' (1979).  

Other terms for call records include CDR (call detail records) or SMDR (station message detail recordings).  These terms normally apply to "raw call records" before they have been processed to apply locations and rates.