Nine years after imposing a statewide alcohol ban to curb addiction, domestic violence, and financial ruin among its poorest families, Bihar - India's poorest state - still struggles to gauge the policy's effectiveness. The gaps in implementation became glaring as the BBC shadowed Bihar officials in a misty October morning raid on bootleggers. Armed excise officers, with a sniffer dog, sped across the Ganges on a boat to raid an illegal distillery. On reaching the outskirts of the capital,