Adverse inference from missing evidence

Adverse inference from missing evidence is the principle that a jury may take the absence of an unavailable exhibit into account when weighing the prosecution’s case. In Rusty Sabich’s trial, it shaped the dispute over a glass said to bear his fingerprints: the judge admitted testimony about the prints, yet expressly allowed the jury to regard the prosecution’s failure to produce the glass as a reason for reasonable doubt.

The Glass and the Prosecution’s Case

The glass mattered because the case against Rusty was circumstantial. The evidence he reviewed included two fingerprints attributed to him on the glass, telephone records showing a call from his home to Carolyn Polhemus’s shortly before her death, forensic findings, and fibers matching carpet from his home. The prosecution also listed witnesses, including Dan Lipranzer, Mrs. Krapotnik, Raymond Horgan, Tommy Molto, and scientific experts. But, as Rusty observed, no witness was listed as having seen him kill Carolyn, and the glass was a central physical exhibit through which the prosecution hoped to connect him to her apartment.

The defense had not been able to examine the glass. That was more than a missing prop in the courtroom: without access to the object, the defense could not independently inspect the alleged prints, test the prosecution’s scientific explanation, or ask another expert to check for error or deliberate manipulation. The gap therefore concerned not only what the evidence might show, but whether the defense had a meaningful chance to evaluate the evidence being offered against Rusty.

The Judge’s Ruling

Judge Larren Lyttle faced a choice that, as Rusty understood it, fell within the lawful bounds of either side’s argument. The defense emphasized police carelessness; the prosecutors stressed that excluding the fingerprint testimony could devastate their case. Lyttle admitted the testimony, but acknowledged the defense’s skepticism and noted that the evidence room had a longstanding record of slipshod handling and recordkeeping. He also observed that the glass itself would not be presented and that police custodians were responsible for its absence.

Lyttle did not find that the prosecutors had acted in bad faith. He said he would assume that they had not, while warning that proof of bad faith could bring the prosecution to an end. His ruling thus separated two questions: whether the fingerprint testimony could be heard, and what significance the jury could assign to the missing exhibit. He allowed the first while refusing to make the second disappear.

The Instruction and Its Effect

Before Maurice Dickerman testified, Lyttle gave the jury a limiting instruction. He emphasized that the defense had no opportunity to inspect the glass, obtain its own scientific assessment, check for an innocent mistake, or determine whether another expert might dispute the identification. The testimony was proper, he said in substance, but the jury had to decide what weight to give it. He further instructed that the jurors could consider the prosecution’s failure to make the glass available and that this fact alone could, if they judged it sufficient, raise reasonable doubt requiring acquittal.

The instruction did not order the jury to reject the fingerprint evidence or to acquit Rusty. It made the missing object part of the evidence they were entitled to weigh. Its force came from putting a procedural failure beside the prosecution’s scientific claim: Dickerman presented photographs, lifts, and enlarged comparisons, but the jury heard from the judge that it had not seen the object on which those comparisons depended. The fingerprint testimony remained in the case, yet its evidentiary weight was explicitly open to challenge.

Forensic Claims and Unequal Access

Dickerman’s account demonstrated how persuasive expert testimony could be when supported by careful presentation. He explained how fingerprints form and showed photographs and enlargements linking marks on the glass to Rusty’s county employee identification card. His professionalism and preparation strengthened the prosecution’s presentation; they did not, however, restore the defense’s lost opportunity to inspect the exhibit itself. The ruling preserved that distinction between the apparent strength of an expert’s demonstration and the limits imposed by an unavailable object.

Other forensic disputes in the trial likewise turned on the interpretation of scientific evidence. During Sandy Stern’s questioning, Dr. Kumagai denied that it was his expert opinion that Carolyn knew she could not conceive. Later, Rusty’s account of the evidence against him described the specimen, telephone records, fibers, and fingerprints as clues whose meanings and origins could be reconsidered. These issues do not erase the specific problem of the glass, but they sharpen the broader concern: accumulated forensic claims can appear mutually reinforcing while remaining vulnerable to questions about access, interpretation, and what the evidence actually establishes.

Significance

The missing-glass dispute gives the rule practical force without treating absence as automatic proof of misconduct. Lyttle permitted the testimony, recognized the evidence room’s known failures, reserved judgment about possible bad faith, and made the jury’s ability to draw an adverse inference explicit. The result was a carefully bounded remedy: the prosecution could present its fingerprint expert, but it could not prevent the jury from considering that the defense had never been allowed to examine the glass.

The episode also places trial fairness alongside the search for factual certainty. An exhibit’s absence does not itself reveal why it is missing or settle what it would show. It does change the conditions under which a claim can be tested. By making that limitation part of the jury’s deliberations, the instruction turned missing evidence from an administrative lapse into a substantive question about the weight and reliability of proof.