8 9 ▁imm igr ant ▁workers ▁during ▁the ▁ra id , ▁ 3 0 5 ▁of ▁them ▁on ▁criminal ▁charges , ▁ 2 9 7 ▁were ▁sent enced ▁on ▁federal ▁fel ony ▁charges ▁for ▁fra ud - related ▁off enses . ▁I CE ▁sp okes man ▁Tim ▁Count s ▁said ▁that ▁“ the ▁ra id ▁was ▁aim ed ▁at ▁seeking ▁evidence ▁of ▁identity ▁the ft , ▁st olen ▁Social ▁Security ▁numbers ▁and ▁for ▁people ▁who ▁are ▁in ▁the ▁country ▁il leg ally ”. ▁According ▁to ▁the ▁U . S . ▁att orney ' s ▁office ▁for ▁the ▁Northern ▁District ▁of ▁Iowa , ▁those ▁arrested ▁“ include ▁ 2 9 0 ▁Gu atem al ans , ▁ 9 3 ▁Mex icans , ▁ 2 ▁Israel is ▁and ▁ 4 ▁Uk ra ini ans ”. ▁ ▁S ources ▁quoted ▁in ▁the ▁aff id av it ▁and ▁application ▁for ▁search ▁war rant ▁alleg ed ▁the ▁existence ▁of ▁a ▁m eth am ph et am ine ▁labor atory ▁at ▁the ▁sla ugh ter house , ▁and ▁that ▁employees ▁carried ▁weapons ▁to ▁work . ▁However , ▁later ▁press ▁reports ▁do ▁not ▁indicate ▁that ▁a ▁m eth am ph et am ine ▁labor atory ▁was ▁found ▁during ▁the ▁search . ▁ ▁In ▁late ▁July , ▁members ▁of ▁the ▁Cong r essional ▁His pan ic ▁C au cus ▁met ▁with ▁workers ▁and ▁community ▁leaders , ▁after ▁a ▁United ▁States ▁House ▁of ▁Representatives ' ▁sub comm ittee ▁had ▁heard ▁testim ony ▁about ▁the ▁ra id ▁and ▁its ▁impact ▁on ▁the ▁families