what is a warrant officer in the united states army
Warrant officer (United States) Warrant officers are highly skilled, single-track specialty officers, and while the ranks are authorized by Congress, each branch of the uniformed services selects, manages, and uses warrant officers in slightly different ways. For appointment to warrant officer one (W‑1), a warrant is approved by the secretary of the respective service. For chief warrant officer ranks (W‑2 to W‑5), warrant officers are commissioned by the President of the United States and take the same oath as regular commissioned officers (O‑1 to O‑10).
Criminal investigation department In the United Kingdom, smaller police stations usually have more uniformed officers than CID officers, typically five DCs with a detective sergeant (DS) in overall command. In larger stations many DCs, DSs and detective inspectors are present under the overall responsibility of a detective chief inspector.