Police systems in us are rather complicated including various levels of police organs such as federal police, state police, city police, county police, special police and private security guard.

美国警察机构复杂多样，同时存在着联邦警察、州警察、城市警察和县(郡)警察及特种警察、私人保安机构等不同层级。

youdao

Adelina Marku, who speaks for the Tetovo-based Democratic Party of Albanians, a junior partner in Macedonia's ruling coalition government, says that the Kosovars, who declared nominal independence from Serbia back in 1991 and created a series of notional organs of state, had lulled themselves into a false sense of security.

ECONOMIST: Macedonia and its Kosovars