Modern police work, including detective duty a book for police officers of all ranks national in scope This book, "Modern police work, including detective duty a book for police officers of all ranks national in scope", by James Joseph Skehan, is a replication of a book originally published before 1939. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.