Final answer:
A failed polygraph test can impact the perception of the defendant's credibility and innocence, but it is not admissible as evidence in court. The attorney may reassess their defense strategy and consider challenging the test's accuracy or validity.
Step-by-step explanation:
When a jail inmate on trial for murder fails a polygraph test, it can have certain implications but it is important to note that a polygraph test is not admissible as evidence in court. The results of the test can, however, influence the attitudes and opinions of the judge, jury, and even the defense attorney.
The attorney may use the failed polygraph test as an opportunity to reassess their strategy and defense for the case. They may decide to focus on other evidence or defenses and avoid relying heavily on the polygraph test. The attorney may also consider challenging the validity or accuracy of the test itself if it can be proven to be unreliable.
Overall, while the failed polygraph test may not directly impact the outcome of the trial, it can still have an indirect influence on the perception of the defendant's credibility and innocence.