All legal issues will be handled by a licensed private investigator.  The following lists describe the work involved with each type of case.  Your case may require some or all of these components.

People Locate & Skip TraceDomestic IssuesService of Process (Non-enforceable)Asset SearchesCriminal
Investigations
surveillanceabuse/neglect investigationsubpoenaprior to litigationaccepted on a case by case basis
background checksinstall "nanny cams"complaintsinternal corporate investigations 
interviews and
questioning
custodial parent investigationsubpoena duces tecumprior to loans 
impersonationschild support investigationsubpoena ad testificandumlarge financial transfers 
target researchjuvenile transport and escortsummonsinvestigate
illegal gain
 
informantsspousal surveillanceorder to show causehidden assets for judgments 
 spouse abuse investigationdivorce papers  
 pre-marital background checkforeclosure papers  
 private bodyguard protectionlegal documents