NEW : Source says police and Saudi attachÃ women kept their jobs , did n't pay them . Authorities report possible human trafficking . Official police probe is at request of Saudi military attache . The women allegedly claim they were mistreated .
NEW : Source says women charging Saudi attachÃ© kept their passports , did n't pay them . Authorities investigate possible human trafficking . Official says probe is at home of Saudi military attache . Two women allegedly claim they were mistreated .