Create a strong Vision, set a direction & boundaries, be a teacher and lead by example, encourage leadership at all levels & help people deal with fear, address the elephant in the room with a goal to achieving better overall processes and procedures.
An educated workforce is a safe workforce - Knowing the reasons and logic behind doing something in a certain way utilises an individual to understand a process much better and apply safety for that reason.
Define a process and set boundaries, once boundaries are understood then there is clear definition in terms of decision making.
Set High standards with a goal to achieving them with an awareness of best practice and legislation which dictates what must be in place to maintain a safe workplace.