The trial galvanised large segments of the black and white liberal community, establishing The Mangrove as a hub of political, cultural and social activity in the early 1970s. For the next 30 years, under great suspicion and threat from the Metropolitan Police and the Royal Borough of Kensington and Chelsea, the Mangrove firmly embedded its roots into the community.
The Mangrove restaraunt and its off-shoot community led initiatives engaged people from the broadest spectrum of society; from those most marginalised, to political and social activists.
Frank and members of the Mangrove community established projects within its eco-system such as a t-shirt printing shop to employ and distribute local artists; an internationally known Steel and Mas band; a supported housing complex for black pensioners and many other formal an informal projects. The Mangrove became symbolic, as much for its resistance to oppressive state practices, as it did for its ability to bring people together.