The Opposition leader said it would be a challenge to exempt the dangers of Pike River from workplace laws.
The suspect in the shooting was arrested peacefully near Arahura Marae, 40km south of Greymouth, after giving himself up.
"He was just trying to get in front of us at all costs," the overtaken driver said.
Locals linked up around a Westport hospital today protesting that a new $12 million, 10-bed centre will be too small.
Sonya Rockhouse has welcomed a Labour, Greens, United Future, Maori Party re-entry commitment.
The parties want a new Government agency to take over the mine after Solid Energy is removed as a state-owned enterprise.