From 2018 to 2019, Forster served as Mayor of Woking.[6]
Forster worked as ALDC Regional Development Officer from October 2018 until May 2022.
Between May 2022 and July 2024, Forster worked for the Liberal Democrats as a Campaign Manager for the South East, stepping down to pursue his successful parliamentary election campaign.[7]
During this debate, Forster broke decades of parliamentary convention by encouraging the participation of additional MP's from the Liberal Democrat benches, as opposed to the usual back and forth between the Minister responding to the MP leading the debate.