Federal Member for Tangney · Western Australia
Dr Dennis Jensen
Scientist. Analyst. Parliamentarian.
Serving the people of Tangney from 2004 to 2016.
A Different Kind of Politician
Dennis Jensen brought something rare to the Australian parliament: a rigorous scientific background combined with direct experience in defence policy and materials research. He held the seat of Tangney in Western Australia for three consecutive terms, applying an evidence-based lens to national affairs.
Before entering public life, Dr Jensen earned a PhD in materials science from Monash University. He went on to work as a research scientist with the CSIRO and later as a defence analyst, developing deep expertise in defence capability, science policy, and national security. That grounding shaped every aspect of his parliamentary career.
Read the full biography →Parliamentary Career
Twelve years representing Tangney under the Liberal Party banner in the Australian House of Representatives.
Election to Parliament
2004
Dr Jensen won the safe Liberal seat of Tangney in Western Australia at the 2004 federal election, succeeding Wilson Tuckey. He entered parliament with a mandate to bring expert knowledge to public policy debates.
Science & Defence Focus
2004–2016
Throughout his tenure, Dr Jensen was a persistent voice on defence capability, science funding, and evidence-based policy. He served on parliamentary committees examining these areas and was known for challenging consensus positions with data and analysis.
Three Consecutive Terms
2004, 2007 & 2010
He was re-elected at the 2007 and 2010 federal elections, maintaining his hold on Tangney across changes in government. His consistency in the seat reflected strong local support in the southern suburbs of Perth.
End of Parliamentary Service
2016
Dr Jensen did not contest the 2016 federal election, concluding twelve years of service in the House of Representatives. He remains one of the very few PhD-qualified scientists to have served in the Australian federal parliament.
A Career Built on Evidence
Dr Jensen's path to Canberra was shaped by years of scientific rigour. His doctoral research in materials science at Monash University gave him analytical tools that distinguished his approach to policy from most of his colleagues.
He applied those tools first at the CSIRO, Australia's pre-eminent research organisation, and later in defence analysis, where questions of capability, procurement, and strategic risk demand precisely the kind of careful, data-driven thinking he had trained for.
That background made him an outspoken participant in parliamentary debates on defence spending, research investment, and the role of evidence in government decision-making.
Full BiographyThe Seat of Tangney
A Liberal stronghold in the southern suburbs of Perth, Western Australia.
Read the Full Story
From Monash University to the halls of Parliament House: discover the career of one of Australia's most distinctively qualified parliamentarians.