Dr. Michael McNamara:

It is actually 100 m. Section 147 of the Electoral Act 1992 states that it is "within 100 metres of such [a] station." It goes on to state that activities should not include doing things "for the purpose of promoting the interest of a political party." It also mentions the curtilage of the station and the entrance. The Deputy might bear with me for one moment while I find the text.