"Daly’s personal troubles, unsettling details about his fellow officers and the victim’s family, and an enlightening look at the travelers and their wandering ways unfold in carefully wrought, often lyrical prose, always rich with foreboding. The ending is somewhat surprising and totally satisfying. Fans of Adrian McKinty and Stuart Neville, in particular as well as all readers who relish that Celtic edge, will not want to miss this one."

– Booklist (starred)

"Quinn is a writer to watch. His prose is careful, rich, dense, and full of Celtic edge, and Quinn’s insights into the world of the vagabond travelers adds much depth and atmosphere. Fans of Adrian McKinty and Stuart Neville will love it. Highly recommended."

– Library Journal (starred)

"Quinn's prose has a quality of bleak poetry. Trespass is a bracing tale of a society ravaged by violence."

– Irish Times

"Quinn’s exploration of the hidden war being waged over the purchase of property on the border is intriguing, as is the secretive culture of the Travellers, a nomadic group who survive by navigating ancient routes through the wilderness."

– Publishers Weekly

"Beautiful writing about ugly events with a plot that's pleasingly serpentine."

– Sunday Times Crime Club (U.K.)

"A major piece of work. Eerily tender, a wonderfully wrought classic that is a landmark in the fiction of Northern Ireland. . . . Line up the glittering prizes of mystery. This one is going to take ’em all. "

– Ken Bruen, author of Rilke on Black

"An outstanding, deeply satisfying and beautifully written police procedural."

– Irish Independent

"A deftly crafted and inherently riveting read from cover to cover, Trespass is another narrative driven mystery by a master of the genre and unreservedly recommended, especially for community library Mystery/Suspense collections."

– Midwest Book Review