Slope stability and landslide hazard mitigation, including rockfall studies. Land-use planning, with emphasis on site investigation and geological hazard evaluation. Geotechnical characterisation of hard and soft rocks in relation to engineering construction projects. Loess erodibility and chemical stabilisation of soils. Groundwater resource evaluation and pollution studies. Engineering and environmental aspects of mining projects. Geomorphological studies and landscape development processes. Late Quaternary glacial geology in the southern South Island. Dating and movement history of large schist-derived landslides in Otago.