How do the words used to describe the poems arrest help contribute to the idea that the arrest in the poem is unjust?

Hi. You have not indicated the poem to which this question refers, which makes it impossible for it to be answered. However, when searching for your question on the internet, I was able to find another question, exactly like yours, which featured the poem "Resisting Arrest." If that's the case for you, I hope the answer below will help you.

The words used in the poem convey a sense of impotence, that nothing can be done to free the poem from being found guilty. This frustration and impotence is a result of the poem's inability to defend itself and this refers to the lack of justice, since defense is a right of any accused, the poem, however, does not have this right.

This feeling can be seen by the lines:

"This poem will be guilty"

" this poem will fail."

" this poem knew it was dangerous to ask why?"

what is the question that you are asking

it's called a epic poem i believe, hope this ☺