He is a Greens member of the Tasmanian House of Assembly, representing the electorate of Clark.

[2] Bayley grew up on a sheep farming property in Sorell, Tasmania.

He trained as a property valuer and schoolteacher, but later became involved in environmental activism and worked for The Wilderness Society.

[3] In 2019, Bayley stood for the Tasmanian Legislative Council seat of Nelson as an independent.

[6] In 2023, he was elected as the Member of the Tasmanian House of Assembly for Clark, following a countback of votes to replace Cassy O'Connor.