UK publications on the Channel islands have often excited controversy. A relatively recent passionate defense of the Islanders' record is:
The Changing Face of the Channel Islands OccupationRecord, Memory and MythHazel Knowles Smith Palgrave Macmillan, February 2007ISBN: 978-1-4039-8804-1, ISBN10: 1-4039-8804-8, 5 1/2 x 8 1/4 inches, 256 pages, Best wishes, Mark Roseman
The only recent work on Jewish communities in the Channel Islands (including Jersey and Guernsey) is:
Frederick Cohen, The Jews in the Channels Islands during the German Occupation 1940-1945, published by the Jersey Heritage Trust, 2000.
They probably have a website from which a copy can by obtained.
Being a part of Britain, after the war, British War Crimes investigators did carry out an assessment of both collaboration and occupation. In addition there is a small neglected number of documents about a number of Channel Islanders who were deported and available at UK National Archives, Kew.
Refugees and Migrants: Unaccompanied Children in Britain 1914-2014
Against the backdrop of intense contemporary debate on immigration, the University of Southampton’s Parkes Institute and the Centre for German-Jewish Studies at the University of Sussex are pleased to announce an interdisciplinary and international conference on unaccompanied child migration both in and out of the UK over the past century. The conference, to be held 17-18 July 2014 at The University of Southampton, seeks to explore all aspects of child migration and its impact on children, society, politics, education and history.
My father was born and raised in Guernsey (he now lives in Ontario) and has an extensive collection of books about Guernsey and the Channel Islands. He also has friends on the island who specialise in books on Guernsey. If you like, I could pass your contact details to him.
Off the top of my head, I cannot think of many academic titles on Guernsey (a few recent ones have looked at memory of the occupation) and I do recall a small book specifically about Channel Island Jewry during the occupation.