UK Stocks-Factors to watch on July 25

July 25 (Reuters) - Britain's FTSE 100 index is seen opening up 18 points at 7395.3 on Tuesday, according to financial bookmakers. * BOE: The Bank of England said on Monday it could force banks to hold more capital as an "insurance policy" to protect the wider economy in case the rapid growth in consumer credit turns sour. * RIO: Britain's anti-fraud regulator has opened an investigation into suspected corruption in Australian-British miner Rio Tinto Plc's business conduct in th