"Existential Absurdity" is When a Person Claims a Given State of Affairs, e.g., "Law", as the Reason for Action/Inaction
Police; prosecutorial officers; judges; citizens, all think they can be determined in their actions/inactions "by law".
There is a basis in twentieth century existential ontological rationale regarding how a human act originates, which overthrows the common notion that "law" is determinative of human action and inaction.
Human action/inaction happens only on the basis of the nothing which is the intended, not yet realized, future, of a particular intended project of a particular human being. Hence, anyone making the claim that existing written "law" is an originative/determinative agent of his or her action/inaction, is mistaken.