Mark is a current police officer who works in Canada. He has primarily worked in patrol and on the SWAT (ERT) team. He also has experience as a peer support member and a mental health instructor. Mark completed a master's degree studying police culture and police officer mental health. He has combined his experiences, both operational, and through mental health peer support, along with his research into a book to help other cops and first responders. In this book he shares his journaling while he was off work on stress leave with PTSD, and more importantly, the things that helped Mark to heal.