- Lake Burley Griffin Investigation 2012.
- Canberra Nature Park Nature Reserves - Molonglo River Corridor and Googong Foreshores Investigation 2011
- Government Tree management practices and the renewal of Canberra’s urban forest Investigation 2011
- ACT Lowland Native Grassland Investigation 2009
Investigations can be undertaken either:
- as directed by the Minister or
- on my initiative into actions of an agency where those actions would have a substantial impact on the environment of the ACT