Fenian Street by Anne Emery

Shay Rynne grew up in the Corporation Flats ― public housing ― in Fenian Street, Dublin. He has always toyed with the idea of joining the Garda Síochána, the Irish police. But in the early 1970s, young fellows from the tenements of Dublin have not been welcomed in the police force. When his friend Rosaleen is killed and the case goes unsolved, Shay decides to put on the uniform of a Dublin garda and sets out to find the killer.

Operation Masonic by Helen C. Escott

The Freemasons' Most Worshipful Grand Master has been murdered. His body has been laid out in the ritualistic Chamber of Reflection at the Masonic Temple, surrounded by centuries of secrets. Royal Newfoundland Constabulary Insp. Nicholas Myra and Cst. Donna Whiffen dig through thousands of years of history, secrets, scandals, and symbols in a hunt for the killer.

The Devil to Pay: An Inspector Green Mystery by Barbara Fradkin

When a man disappears, the police conclude he is simply fleeing an unhappy home and a mountain of debt. Then a body is discovered. Inspector Green’s daughter, a rookie patrol officer, fears that her actions precipitated the murder and starts to dig for answers. Her search leads her straight into the path of danger. And another body.