Thelawyerappliesthelawtospecificcases.Heinvestigatesthefactsandtheevidencebyconferringwithhisclientandreviewingdocuments,andhepreparesandfilesthepleadingsincourt.Atthetrialheintroducesevidence,interrogateswitnesses,andarguesquestionsoflawandfact.Ifhedoesnotwinthecase,hemayseekanewtrialorreliefinanappellatecourt.Inmanyinstances,thelawyercanbringaboutthesettlementofacasewithouttrialthroughnegotiation,reconciliation,andcompromise.Inaddition,thelawgivesindividualsthepowertoarrangeanddeterminetheirlegalrightsinmanymattersandinvariousways,asthroughwills,contracts,orcorporatebylaws,andthelawyeraidsinmanyofthesearrangements.Duringthe20thcenturyarapidlydevelopingfieldofworkforlawyershasbeentherepresentationofclientsbeforeadministrativecommitteesandcourtsandbeforelegislativecommittees.Alawyerhasseveralloyaltiesinhiswork.Theyincludethattohisclient,totheadministrationofjustice,tothecommunity,tohisassociatesinpractice,andtohimself.Whentheseloyaltiesconflict,thestandardsoftheprofessionareintendedtoeffectareconciliation.