Schumacher became a writer after obtaining a commission from Angie Sammons, the then-editor of Liverpool Confidential.
[1][2] Schumacher's first novel, the alternate-history book The Darkest Hour, is set in a 1940s-era UK after a hypothetical Nazi victory in World War II.
[3] His second book, The British Lion, was released by the William Morrow imprint of HarperCollins, and was also well received in both the United States and the UK.
He also has several other books that he self-published, including Rear View Mirror: Stories from the Streets and the Night, which recounts tales of his time as a police officer and taxi driver.
[4] Schumacher wrote the BBC One television drama series influenced by his days as a police officer in Liverpool, The Responder starring Martin Freeman,[5] which began airing on 24 January 2022[1] and has received praise.