closed system

At present, we can’t know because policing and police leadership are closed systems.

He closed his eyes, imagining the virgins, imagining away the pain in his head and groin.

There were no deaths on scheduled commercial aviation flights in 2014, in a system that operates 68,000 flights a day.

She fills her characters up—strong women beating back against a sexist system—with so much heart.

A hundred ultra-wealthy liberal and conservative donors have taken over the political system.

Closed courthouses, rogue clerks, and misleading statements from the attorney general as Florida welcomes same-sex marriage.

Sweden excluded British goods, conformably to the continental system established by Bonaparte.

As Spain, however, has fallen from the high place she once held, her colonial system has also gone down.

The reformers of the earlier period were not indifferent to the need for centralized organization in the banking system.

Accordingly, the question "How far does the note issue under the new system seem likely to prove an elastic one?"

Thanks to Berthier's admirable system, Bonaparte was kept in touch with every part of his command.