ed , ▁( Pe er ▁review ing ▁usually ▁reduces ▁the ▁ch ances ▁of ▁error ▁in ▁the ▁theory ) ▁ ▁The ▁reli ability ▁and ▁error ▁rate ▁( 1 0 0 % ▁reli ability ▁and ▁zero ▁error ▁are ▁not ▁required , ▁but ▁the ▁rates ▁should ▁be ▁considered ▁by ▁the ▁trial ▁judge ) ▁ ▁The ▁extent ▁of ▁general ▁accept ance ▁by ▁the ▁scientific ▁community ▁ ▁The ▁Federal ▁R ules ▁of ▁Ev idence ▁use ▁the ▁Da ub ert ▁Test . ▁See ▁F RE ▁ 7 0 2 . ▁ ▁The ▁Federal ▁R ules ▁of ▁Ev idence ▁ ▁In ▁ 1 9 7 5 , ▁the ▁United ▁States ▁Congress ▁issued ▁the ▁Federal ▁R ules ▁of ▁Ev idence ▁( F RE ). ▁F RE ▁ 7 0 2 ▁was ▁issued ▁to ▁provide ▁a ▁standard ▁for ▁expert ▁witness ▁testim ony ▁to ▁be ▁u ph eld ▁by ▁the ▁United ▁States ▁court ▁system . ▁The ▁rule ▁specified ▁that ▁the ▁application ▁of ▁expert ▁witness es ▁had ▁to ▁be ▁attributed ▁to ▁a ▁person ▁with ▁“ s cient ific ▁or ▁technical ▁knowledge ,” ▁in ▁conj unction ▁with ▁a ▁list ▁of ▁qual ifications ▁that ▁would ▁quality ▁one ▁to ▁be ▁an ▁expert ▁in ▁terms ▁of ▁“ know ledge , ▁skill , ▁experience , ▁training ▁or ▁education ”. ▁This ▁rule ▁thus ▁clar ified ▁the ▁acceptable ▁use ▁of ▁expert ▁witness es ▁in ▁both ▁criminal ▁and ▁civil ▁cases . ▁ ▁However , ▁F RE ▁ 7 0 2 ▁still ▁left ▁some ▁courts ▁in ▁confusion . ▁The ▁courts ▁and ▁subsequently ▁the ▁jud ges ▁who ▁would ▁use ▁this ▁new ▁rule ▁were ▁confused