About The CID
CID stands for Criminal Investigation Department. It is a specialised unit within the police force that focuses on investigating serious crimes. CID officers are responsible for gathering evidence, interviewing witnesses, and making arrests involving crimes of a serious nature. This could include sexual offences, serious assaults, murders or anything deemed to be serious. These might require specialist expertise to ensure that more complicated or serious crimes are fully investigated.
The role of detectives within CID
CID officers, who are mostly detectives, investigate serious crimes that have already occurred but are also able to take up proactive roles to stop crime and target known offenders. There are many areas within CID which focus on different types of crimes; for example, there is a drug squad, fraud, sexual offences team etc.

How to become a Detective in CID
Firstly you must join the Police as a uniformed officer and finish the two-year probationary period before you can be eligible for a role in the CID. You can also apply for a Detective entry programme in England where you join the Police and qualify as a Detective after a 2-year period.
Detective ranks
- Detective Constable (DC)
- Detective Sergeant (DS)
- Detective Inspector (DI)
- Detective Chief Inspector (DCI)
- Detective Superintendent (DSU)
- Detective Chief Superintendent (DCS)
Crimes CID investigate
The Criminal Investigation Department (CID) investigates a wide range of crimes, including murder, rape, fraud, burglary, drug trafficking, money laundering, cybercrime, and terrorism. They also investigate cases of organised crime, corruption, and other serious offences.
What’s the difference between CID and police
The main difference between CID and police is that CID is a specialised unit within the police force that focuses on investigating serious crimes. Police officers are responsible for responding to calls, patrolling the streets, and enforcing the law. CID officers are responsible for gathering evidence, interviewing witnesses, and making arrests.
Detective salary in CID
The salary for a Detective in CID varies depending on the police force. Generally, the salary for a Detective Constable is between £24,000 and £40,000 per year. Detective Sergeants typically earn between £40,000 and £45,000 per year, and Detective Inspectors typically earn between £45,000 and £50,000 per year.