Colateralsourcerule（间接来源规）－法律英语英汉法律词典上的解释是如此的：间接来源规那么，附加来源规那么。指假设受损害人接受为其损害补偿的来源是与侵权人无关，那么损害赔偿的补偿不得因此而减少，且侵权人必须支付的规那么。Whatisthecollateralsourcerule？Thecollateralsourceruleisacommonlawevidentiaryrulethatprohibitsadefendantfromintroducinganyevidencethataplaintiffhasbeenorwillbereimbursedbyanyotherpersonororganizationfordamagesclaimedinalawsuit.Forexample，manyplaintiffsreceivecompensationformedicalbillsorlostwagesviahealthinsurance，disabilityinsuranceorworkers’compensation，butthehospital，physicianorotherhealthcareproviderbeingsuedisnotallowedtotellthejuryaboutthisothersourceofcompensation.Evenafterthesecollateralsourcepayments“havealreadybeenpaidtothepersonbringingthelawsuit，thatpersonisallowedtotrytocollectitasecondtimeintheirlawsuit.Asaresult，plaintiffsoftenarepaidtwiceforthesamedamagesthatiswhythisissometimesreferredtoasdoublerecovery.Whydoweneedcollateralsourcerulereform？First，itjustdoesnotmakesensetoallowtheplaintifftocollecttwiceforthesamemedicalbillsorothereconomiclosses.Thisdrivesupthecostofhealthcareforallofus.Worseyet，itencouragesextraandunnecessaryusageofhealthcareitemsandservices，ifnotoutrightfraudandabuse，here’swhy.Whenplaintiffscanrecovertwiceforthesamemedicalbilloncefromtheirinsuranceandoncefromthedefendantinthelawsuitthey（andespeciallytheirlawyer）canstarttoseethisasamoneymakingventure.Themoremedicalbillstheyrunup，thebiggertheirwindfall.Forexample，iftheyincur$100，000inmedicalbillsandthatispaidbytheirinsurance，buttheythengettocollectthe$100，000intheirlawsuit，theyseethattheyhavemade$100，000onthistransactionandhaveincentivetotrytoincreasetheamount.Thelawyerworkingoncontingencyfeebenefitstoosinceheorshegetsanywherefrom30-50%ofthedamagemoneypaidtotheplaintiff，soifplaintiffgetsanextra$100，000，thelawyergetsanextra$30，000to50，000.Manystates，recognizingtheproblemsthecollateralsourcerulewascausing，havepassedsomeformofcollateralsourcerulereform.Nineteenstatesmandatethatthejudgeoffsetfromplaintiffs’damageawardsthepaymentsreceivedfromcollateralsource