In solidarity, under suspicion is the successor volume to Against the grain (2014) and Waiting for the revolution (2017), complementing analysis of the far left in Britain from 1956 until the present. In addition to new scholarship on hitherto under-researched groups and movements, the volume explores recent findings from the Undercover Policing Inquiry and provides historical context for developments in the British left during and after 'Corbynism'. Chapters consider the far left's relationship to the state as well as to the Labour Party, and highlights attempts by far-left groups and activists both to intervene internationally and to transform themselves. With a range of different perspectives - activist and academic - In solidarity, under suspicion draws out the distinct ways that different far left groups and movements have responded to problems which remain salient today.