abu dhabi/dubai saudi arabia crackdown corruption spread beyond border regulators unite arab emirates ask uae bank information saudi citizens detain investigation possible prelude freeze account uae central bank request commercial bank finance company uae provide detail account 19 saudis commercial bankers tell reuters thursday decline name sensitivity matter almost 19 include billionaire prince alwaleed bin talal former national guard chief prince miteb bin abdullah know among dozens senior officials businessmen detain corruption inquiry commercial bankers say uae authorities explain want information believe authorities act behest saudi government say aim recover billions dollars illicit assets identify investigation central bank officials uae federation seven emirates available comment saudi officials riyadh freeze 1,700 domestic bank account part crackdown respond request comment uae particularly commercially prominent emirate dubai one main place wealthy saudis park money abroad addition bank account buy luxury apartments villas dubai invest emirate volatile stock market huge amount money may stake corruption years siphon 800 billion saudi state revenues official riyadh chamber commerce industry estimate bankers believe much hold abroad countries include switzerland britain wealthy saudi individuals liquidate assets within saudi arabia uae gulf countries week apparently effort move money region escape crackdown private bankers fund managers say riyadh rich individual investors sell equities heavily although buy state-linked fund help support market dubai share real estate developers sink investors worry impact property market pull-out saudis uae commercial bankers say ask freeze saudi account institutions believe central bank request information might prelude action risk account freeze jeopardize dubai pitch private bank center say gulf-based banker add bank uae full saudi money one senior banker international bank business saudi arabia say institution already freeze account inside kingdom outside response saudi government request bank conduct investigations account link people detain banker say without elaborate another banker region say institution receive enquiries saudi clients cross-border financial transactions handle enquiries extreme caution could action regulators risk fund outflows region help push currencies gulf arab countries slightly u.s. dollar forward market week saudi riyal drop low 285 point one-year forward market thursday imply riyal depreciation 0.8 percent dollar next 12 months around 115 point crackdown however remain much strong last year hit level around 1,000 point worry saudi arabia ability cope era low oil price saudi graft inquiry spread beyond border uae examine bank account