noun
local police
Refers to the police force of a specific locality, as opposed to national or prefectural police organizations.
地元警察が事件の捜査を担当している。
The local police are in charge of investigating the case.
警察 is the general term for 'police'; 地元警察 specifies the police of a particular local area.
Compound of 地元 (じもと, 'local area') and 警察 (けいさつ, 'police').