It's the first time in four decades that the Chicago Police Department's rule book will be reviewed. Officials said the 16-inch book is full of outdated orders and entries, including a 1924 rule that officers must wear linen collars with their uniforms. Other unnecessary entries include the explanation of daylight saving time.
Rachel Johnston is the department's director of research and development. She says the book is a mess and a team of officers and other department employees is cleaning it up.
Their mission is to trim the book by about two-thirds. The team of workers is starting from scratch.
Officials say the revised rules will be posted online later this year.
The Associated Press contributed to this report.