 In the 40th Parliament, she was the critic on transportation and BC Ferries and, in that role, produced a report comparing the BC Ferries system with the Washington State Ferries system and introduced the "Provincial Shipbuilding Act" in both 2014 and 2015 seeking to have future ferries constructed in Canada.Originally from England, Trevena has a background in journalism having worked as a Canadian correspondent for British media.After she immigrated, she worked for the Canadian Broadcasting Corporation and then as a public information officer for the Organization for Security and Co-operation in Europe.