This week on Politics Central, Otago University international relations expert Robert Patman discusses whether peace in Ukraine is possible as world leaders gather in Switzerland to try and build support for Ukraine’s peace proposals - and if Putin's 'unrealistic' offer is cause for hope. Later, Minister for Workplace Relations and Safety, Brooke van Velden, talks about the Government's announcement of a roadshow consultation on work health and safety.  LISTEN ABOVE See omnystudio.com/listener for privacy information.