moscow/paris kremlin say wednesday spare effort defend right suleiman kerimov russian businessman lawmaker arrest french riviera resort nice connection french tax evasion case share polyus russia big gold producer control kerimov family news detention 51-year-old billionaire would present judge view formally place judicial investigation french public prosecutor say nice wednesday france legal system formally place investigation often always lead person send trial everything power protect lawful interest kremlin spokesman dmitry peskov tell conference call reporters intensive work undertake foreign ministry representative kerimov upper house parliament sit lawmaker decline comment case wednesday contact reuters polyus decline comment russia state-run rossiya 24 tv station cite unnamed source report kerimov deny guilt low house parliament lawmaker rizvan kurbanov ask russian foreign ministry make representations kerimov behalf french authorities still receive french authorities explanation reason detention colleague kurbanov tell parliament testify unprecedented demarche french say add hop russian foreign ministry would issue formal protest share polyus percent early trade moscow since recover grind trade minus 2.3 percent 1342 gmt originally mainly muslim russian region dagestan kerimov build multi-billion natural resources business combination debt appetite risk political connections own top flight soccer club anzhi makhachkala sell 2016. kerimov fortune peak 17.5 billion 2008 slump billion 2009 accord forbes magazine due so-called margin-calls assets trigger 2008 global financial crisis march year russian president vladimir putin sign decree give kerimov state award service fatherland second class contribution russian parliamentary life french police arrest kerimov nice airport monday even french judicial source say investigation center purchase several luxury residences french riviera via shell company something would enable kerimov reduce tax owe french state kremlin pledge stand russian billionaire arrest france