Want this question answered?
The usual route - is by 'rising through the ranks'. You would start as a constable then, over time you could be promoted to sergeant then inspector. At each stage of promotion, you would be required to take (and pass) exams to prove you are capable of carrying out the new role.
Detective Sergeant Robert Lewis
In the UK the police ranks are:CountyConstable, Sergeant, Inspector, Chief Inspector, Superintendent, Chief Superintendent, Assistant Chief Constable, Deputy Chief Constable, Chief ConstableCity of London PoliceConstable, Sergeant, Inspector, Chief Inspector, Superintendent, Chief Superintendent, Commander, Assistant Commissioner, CommissionerMetropolitan PoliceConstable, Sergeant, Inspector, Chief Inspector, Superintendent, Chief Superintendent, Commander, Deputy Assistant Commissioner, Assistant Commissioner, Deputy Commissioner, Commissioner
When a First Sergeant leaves, it'll either be because they've been relieved of duty, or are about to be promoted to Sergeant Major. Who replaces the First Sergeant depends on the availability. It may be a Master Sergeant transferred from a staff position, or it may be a Sergeant First Class who is about to be promoted to E-8. You won't find Master Sergeants in line companies - Master Sergeants are found in staff positions.
Recruits in boot camp are generally fearful of their drill sergeant. The brilliant young police detective was promoted to sergeant after solving a string of crimes.
Sergeant Robert Lewis
Yes Sergeant Robert Lewis
Chief Inspector Charles Dreyfus played by Herbert Lom.
Promoted to segeant through combat
Technical supervisor
In the UK Police Force a Sergeant is supervised by an Inspector. In the British Army a Staff Sergeant is the next rank up.
Constable Corporal Sergeant Staff Sergeant Inspector Superintendent Chief Superintendent Assistant Commissioner Deputy Commissioner Commissioner