The phrase "as a shield of" is correct and usable in written English.
It can be used to describe something that serves as protection or defense against something else.
Example: "The new policy was implemented as a shield of security against potential data breaches."
Alternatives: "as a barrier to" or "as a safeguard against".
"A grand jury is supposed to act as a shield of innocence against instances of private malice like this," Mr. Pagones said emphatically.
But as they transported the bodies to a morgue in Brazil and assembled the wreckage at a warehouse in Toulouse, the glimmering surface of the ocean remained as impenetrable as a shield of diamonds.
"It's like it's saying, 'Hey, I'm doing this thing.' " Such a barrier served as a shield of sorts nearly 10 years ago when he shot a horrific accident in Laurelton, Queens, when a tree fell on a church bus, killing four young girls inside.
Barak has all along claimed that he serves as a shield of Israel's national security concerns.
Next, air is pushed through holes serving as a shield of bubbles around the noise.
And to further keep tabs on whether the law is being abused as a "shield of immunity" for defendants who were actually aggressors, Smith and his panel propose keeping extensive records of Stand Your Ground claims and outcomes.
Thus, the late 13th century Wijbergen armorial shows the coat of arms of the Wallachian ruler Litovoi as consisting of a shield of ten vertically alternating gold-and-red bands, which were the colors of the coat of arms of the Second Bulgarian Empire, of which Wallachia was part.
Turkey has long acted as a "shield for all of Europe", its prime minister pointed out this week, and should be given the help it has asked for.
Public development banks must make sure they are not acting as a shield for some of the most social and environmentally damaging lending.
HUMAN RIGHTS -- The sovereignty of states must no longer be used as a shield for gross violations of human rights.
