Cover of The Last Lawman: True Stories of a Private Detective by Nils Grevillius

The Book

The Last Lawman: True Stories of a Private Detective

Thirty years undercover, on stakeouts, and inside the cases police couldn't — or wouldn't — solve.

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Critical Acclaim

Book Reviews

“Grevillius neither asks for sympathy nor softens the edges... The Last Lawman is a raw account of a life lived in violence, suspicion, and institutional decay. Unsparing, unromantic, and precise — this book is a record, not a performance.”

Soldier of Fortune

“If you love L.A. Confidential, hard-boiled detective stories or those gritty serialized dramas that keep you turning pages long after you should have gone to sleep, The Last Lawman delivers something even better: stories that actually happened, lived by a guy who spent more than three decades doing the real thing.”

“The Last Lawman does not read like a memoir. It reads like the first season of a television series you cannot stop watching.”

Blaze Media

Chris Salcedo · August 7, 2026

“The Private Eye Hollywood Is Too Scared to Write”

“Nils Grevillius shares stories that are truly 'stranger than fiction,' and strangely truer than official narratives... stories that are not only a good read, but that also reveal deep truths about our own society well worth understanding from a street-level perspective.”

Inside the Book

With thirty-plus years as a private detective in Los Angeles, Nils Grevillius shares how cases are undertaken, the methods used to see without being seen, and how to hear without being heard. After many years as a soldier, spy, contractor, Pinkerton agent, and private detective, Nils finally tells the whole story of a life spent moving toward danger while others retreated from it — from post-riot Watts, back through an unforgiving childhood, the Korean DMZ, and into Army counterintelligence.

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Author Appearance · Book Signing

Meet Nils at Flintridge Bookstore

The Blaze called me “the private eye Hollywood is too scared to write.” I’d rather just tell you the stories myself.

I spent more than thirty years as a private detective in Los Angeles. I wrote some of those cases down in The Last Law Man, including the ones public agencies gave up on or were too conflicted to touch. Come by, say hello, and pick up a copy.

Sunday, November 8 · 4:00 PM

Flintridge Bookstore

858 Foothill Blvd, La Cañada Flintridge, CA →