I am reading an article, and have just come across this phrase, "bank shot." I looked up the web definitions of "bank shot", but only definitions I could get were in the context of sports, namely basketball and billiards. I think the phrase is used metaphorcally in the article, and I would like somebody to tell me what the "bank shot" means in the article.

The article talks about how solitary confinement in the U.S. federal prisons are driving the inmates insane, and how constitutional lawyers are challenging the solitary confinement of inmates in the U.S. prisons. the aticle describes how those lawyers are being successful in legal battles against a number of states, using the 8th amendment of the U.S. constitution. Then comes the following sentence (due to avoid a copy-right issue, I changed the sentece a bit): Another approach is more or less a constituinal bank shot - to rely on the requirement stated in the 14th ammendament - a due process hearing before the state denies an inmate a "liberty interst."

Could someone tell me what "bank shot" means in this context?
Would help to have the exact words. I don't think anyone will shout about copyright for this use.#

However, it seems to imply that the lawyers are using a side-stepping technique to ensure an inmate receives a due process hearing.

In the game of pool, a 'bank shot' is where you achieve success by first 'banking' the ball against the side (ie the bank) of the table. The phrase 'a bank shot' thus means to do something indirectly.

The approach the laywers are taking is an indirect one, ie using the constitution, rather than a more direct approach like simply appealing to a judge for a writ of 'habeas corpus' to get their client released.

Best wishes, Clive
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I think this was the original sentence:

Another approach -- one that's a bit of a constitutional bank shot -- is to rely on the 14th Amendment's requirement of a due-process hearing before the state denies an inmate a "liberty interest," something courts define as a reasonable expectation of a freedom or right.

Thank you so much for your response, Feebs11! Also, thanks for your help, New Philosopher.
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 Clive's reply was promoted to an answer.