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Photo: Supplied: Echo Publishing
Craig Semple spent nearly twenty five years investigating some of the worst crimes imaginable.
As a detective sergeant in New South Wales he saw it all: murder, rape, child abuse, fatal car crashes and dozens of suicides.
But it took its toll. After eight years of ignoring the warning signs of the stress of the job, his life as he knew it came to a sudden halt.
He was medically retired from the force and his marriage ended.
Craig told his very personal story in a book called The Cop Who Fell To Earth.
Now he's documented his mental health journey in Getting Back Up Again: A plan to get your head in the game.
Craig went on to work with Australia's Black Dog Institute and Backup for Life.
He's also set up his own company called Mentality Plus, which does workplace mental training and consulting.
He describes his new book as a story of post-traumatic growth.