The government is following the science why is the translation of evidence into policy generating so much controversy?

In the UK, the government has presented itself as guided by scientific evidence in its policy responses to COVID-19. This has led to science, in particular epidemiology, itself becoming politicised and contested. However, neither the politicisation of science nor questions surrounding the status of evidence are new. In this post, Luis Pérez-González, outlines how a similar politics of expertise has played out in environmental policy-making. The author argues that for scientific evidence to be successfully communicated in policy, it needs to be informed by bipartisan values.