Dismissed detectives accused in the station (10)

I believe the answer is:

discharged

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'dismissed' is the definition.
(I know that dismissed can be written as discharged)

'detectives accused in the station' is the wordplay.
'detectives' becomes 'dis' (Detective Inspectors, DIs).
'accused in the station' becomes 'charged' (I am not sure about this - if you are sure you should believe this answer much more).
'dis'+'charged'='DISCHARGED'

Can you help me to learn more?

(Other definitions for discharged that I've seen before include "let off" , "released" , "Fired" .)

I've seen this clue in The Irish Times.

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