During the jury selection process, a name is selected and read, whereupon the name is typed out on a list. The first name is read, then a second, but when we see the list another name, one not read out, has been added in between.
During the reenactment of the crime, the female officer is standing by the edge of the cliff. The prosecutor then steps to her side. In the next shot, the officer is standing alone again.
When the jury is taken to the defendant's house for a reenactment of his wife's death, the bailiff calls the session to order and states that Judge Byron is presiding. However, the judge is not visible among the crowd and does not speak first to begin the proceeding. Instead, the DA begins the session without seeking the judge's permission.
In the fourth day of trial, the district attorney produces a two-page letter written to the defendant which he intends to read to the jury. The defense attorney objects and is overruled. The D.A. reads the letter and submits it as People's Exhibit #1. First, how could they go full three days in a murder trial without submitting any other evidence? Second, such a letter should have been provided to the defense prior to trial and any issues briefed and decided before trial. Third, the judge overruled the objection without even looking at the letter and allowed it into evidence without even glancing at the signature page. Fourth, the letter was not verified by any witness prior to its introduction (a prerequisite, especially for "surprise" items).
Thelma Ritter was 48 years old when this film was made, but her character was expecting a child.
A competent defense attorney never would have let Mrs. Bradford on his client's jury. She was jilted by a husband with the same first name as the defendant.