Longman Dictionary of Contemporary English
chief superintendent
noun
EXAMPLES FROM CORPUS
▪ Blanche did not like the chief superintendent glowing smugly over her mistake.
▪ Manciple disappeared and Stephen was questioned by a chief superintendent called Malm.
▪ Note. -There is a separate procedure under section 86 for dealing with complaints against senior officers above the rank of chief superintendent.
▪ The chief superintendent had something else to tell her.
▪ The chief superintendent seemed to revel in the reprimand he issued to her.
▪ The chief superintendent was pleased with himself.
Wikipedia
Chief superintendent
Chief superintendent is a senior rank in police forces, specially in those organised on the British model.