Conza

Action-based  legal  theory  provides  tools  to  take  into  each  case.  It supplies some of the underlying questions to which case-specific details shape answers.  Legal  principles  guide  inquiry  into  specifics  while  emerging  details suggest  the  most  relevant  set  of  legal  principles  to  apply.  Justice  may  be found at the meeting theory and practice—of deduction, institutions, and the details of specific cases. Sound theory functions as a service to legal practitioners, enabling them do  their jobs more easily and reliably. […]

Legal practice should always be on trial in the court of legal theory, while legal theory should be recognized as insufficient to do justice in any real case. Legal theory and legal practice must therefore  persist  in  a  challenging  but  necessary  marriage  between  distinctive partners  if  they  are  to  produce  the  offspring  of  justice.  Used  properly, praxeological  legal  concepts  not  only  boost  the  clarity  of  legal  theorizing from  “the  armchair,”  they  also  enhance  the  ability  of  practitioners  to  parse specific cases from “the bench.”

(Source: libertarianpapers.org)