I came across an article pointing out the difficulty in maintaining objectivity. Certain research points out that a forensic psychologist's outlook may be influenced depending on whether they are acting on the part of the defense or prosecution.
This highlights comments both by Natalija and Sehrish.
The research found that:
"The findings reveal that experts who believed they were working for prosecutors tended to rate sexually violent offenders as being at greater risk of re-offending than did experts who thought they were working for the defense."
The article can be found here: https://www.psychologicalscience.org/news/releases/forensic-experts-may-be-biased-by-the-side-that-retains-them.html
I've been wondering if forensic psychologist sometimes lean on their intuition even though they have no certain evidence. I've heard stories where some of them say that sometimes the intuition is so strong that that just can't ignore it.