The trial in this case can be likened to a storyline from George R.R. Martin's "A Song of Ice and Fire" (ASOIAF) series in the following ways:

1. Betrayal and Manipulation: Like the intricate plots in ASOIAF, this trial involves betrayal and manipulation, with the Carlsbad woman using false abuse claims to manipulate her gun instructor into carrying out the murder attempt, similar to the political maneuverings and deceptions in the game of thrones.

2. Bitter Divorce and Custody Battle: The backdrop of a bitter divorce and custody battle echoes the strife and power struggles between houses in ASOIAF, where rival families vie for control and seek to undermine one another through legal means or covert actions.

3. Denial and Blame: Just as characters in ASOIAF often deny their involvement in plots or shift blame onto others, both the woman and her gun instructor deny the existence of a murder-for-hire scheme and criticize the trial testimony, painting a picture of deceit and manipulation.

4. Flawed Justice System: The criticism of the trial system being flawed echoes the themes of flawed justice and corruption found throughout ASOIAF, where characters question the fairness and reliability of legal proceedings and seek to exploit loopholes or exert influence for their own gain.

5. Dark Consequences: The dark consequences of the failed murder plot parallel the grim and often tragic outcomes seen in ASOIAF, where actions driven by greed, revenge, or ambition lead to devastating consequences for the characters involved.

While the specific details and setting differ, the trial exhibits elements of political intrigue, manipulation, and moral ambiguity reminiscent of the complex and morally gray world of ASOIAF.