open and shut

open and shut

if a legal case or problem is open and shut, the facts are very clear and it is easy to make a decision or find a solution The police think the case is open and shut: five witnesses saw the man stealing the car. It's going to take a lot of work to deal with this problem. It certainly isn't an open-and-shut matter.
See also: and, open, shut

open and shut

Simple, straightforward, easily solved, as in With three eyewitnesses, the prosecutor said this case was open and shut. This term suggests that one has immediate access to the facts of a situation. [c. 1840]
See also: and, open, shut
References in classic literature ?
From the left fob he took out a net almost large enough for a fisherman, but contrived to open and shut like a purse, and served him for the same use: we found therein several massy pieces of yellow metal, which, if they be real gold, must be of immense value.
They open and shut the trap-doors without any particular reason.
I have fished for trout, in Tahoe, and at a measured depth of eighty-four feet I have seen them put their noses to the bait and I could see their gills open and shut.
But in vain did he search the whole room, open and shut all the drawers, even that privileged one where the parcel which had been so fatal to Cornelius had been deposited; he found ticketed, as in a botanical garden, the "Jane," the "John de Witt," the hazel-nut, and the roasted-coffee coloured tulip; but of the black tulip, or rather the seedling bulbs within which it was still sleeping, not a trace was found.
600,000,000 air cells in one pair of lungs, and 2,000 pores to a square inch of surface; so you see what quantities of air we must have, and what care we should take of our skin so all the little doors will open and shut right.
I thought I saw the door open and shut again a little while ago.
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