Reviews of Policing Hong Kong - an Irish History
David Hodson's review can be accessed by the title link above, which gives access to preview, requires sign up to JStor to view whole article
Books Ireland - the world of Irish Books Nov/Dec 2017, Issue No. 376
unfortunately Aubrey Malone's critically favourable review isn't available online ... but starts out ... "I never thought I'd see the words 'Police', 'Hong Kong' and 'Irish in the same sentence. How much more surprising, then, that Patricia O'Sullivan has chosen to devote a whole book to this fascinating trilogy of themes" and concludes "It is like opening a box of riches that you never knew existed, and at times it comes close to the quality of a triller."
AWAre Magazine of the American Women's Association of Hong Kong March 2018
Frances Nicholl's review available in the pdf download of the magazine, at page 9