Actually it wasn't really ambiguous - in fact it was pretty clearly stated in the article for safety:
"... adding more transit peace officers or improving their training and authorities so officers can make arrests or carry Tasers."
And from Sohi
“We’ve got to continue to invest in security. So hiring more transit police officers, (having) police officers regularly patrolling LRT stations and bus stations, and giving more authority to transit police officers where they are better trained — I think those are the things that we need to explore,” he told reporters.