There are claims Tasmanian Government underfunding is putting workplaces at risk.
Right to Information figures obtained by the Greens revealed out of 38 workplace deaths in the state, formal probes were undertaken into only 21 of the fatalities.
However, Building and Construction Minister Elise Archer points out there are other regulatory bodies such as Tasmania Police and the Civil Aviation Safety Authority which carry out investigations where necessary.
"To set the record straight, WorkSafe Tasmania investigates every work-related workplace death in which WorkSafe is the lead jurisdiction, with no exceptions," she said.
The data also showed just 64 serious injury cases were probed out of a total of 858.
“It is incredibly concerning this trend of an under-resourced WorkSafe not being able to fulfil its legal responsibility has continued,” Greens Member for Franklin Rosalie Woodruff said.
But the government argues they've funded another five full-time inspectors statewide in the 2019/20 budget.
"There are a wide range of incidents notified to WorkSafe Tasmania, not all of which require workplace attendance by an inspector. Notifications are triaged, then followed up by either a workplace inspection or contact by telephone or email," Ms Archer said.