Legal news Roundup - August 28, 2015Compiled By Patricia Cancilla CanadaOttawa officers won't be charged in man's drowning, Canadian PressMan accused of sending letter bomb that injured Winnipeg lawyer awaits bail decision, Canadian Press Halifax police warn of WeChat scam, Canadian PressUnited StatesU.S. appeals court rules for NSA over metadata collection challenge, ReutersU.S. appeals court upholds protest ban on Supreme Court plaza, ReutersInternationalBritish journalists detained in Turkey, ReutersMore than 100 dead as number of migrants crossing Mediterranean soars, Reuters