Legal and Ethical Considerations in Forensics Flashcards

Which of the following scenarios best illustrates 'ethical tunnel vision' in forensic work?

Answer: An examiner who focuses exclusively on evidence that incriminates the suspect while ignoring exculpatory findings

Ethical tunnel vision occurs when a forensic professional becomes so focused on building a case against a suspect that they ignore or discount contradictory evidence.

A forensic examiner serving as an expert witness is cross-examined about a study that contradicts their methodology. The examiner should:

Answer: Acknowledge the study and explain why their methodology remains valid despite it

Credible expert witnesses address contradictory literature honestly, explaining the basis for their chosen methodology rather than dismissing or avoiding challenges.

The legal concept of 'spoliation of evidence' in a digital forensics context refers to:

Answer: The intentional or negligent destruction, alteration, or failure to preserve evidence

Spoliation is the destruction or material alteration of evidence, which can result in adverse inference instructions, sanctions, or criminal charges.

A forensic examiner's report contains an opinion that goes beyond the examiner's area of demonstrated expertise. This is ethically problematic because:

Answer: It constitutes overreaching and may mislead the court on matters the examiner cannot reliably address

Rendering opinions outside one's expertise misrepresents one's qualifications and can introduce unreliable information that prejudices the fact-finder.

When retaining a forensic expert, an attorney offers the expert a contingency fee arrangement tied to the case outcome. The expert should:

Answer: Refuse, because contingency fees compromise the expert's impartiality and are prohibited by ethics codes

Contingency fee arrangements for forensic experts are prohibited by professional ethics codes because they create a financial incentive that compromises objectivity.

Which of the following is an examiner's ethical responsibility when presenting statistical evidence, such as a DNA match probability, to a jury?

Answer: Accurately explain the meaning of the statistic and avoid misleading the jury through the 'prosecutor's fallacy'

The 'prosecutor's fallacy' misrepresents match probabilities; examiners must accurately convey what statistics mean and do not mean to avoid misleading the fact-finder.

A forensic examiner receives a request from a law enforcement officer to bypass device encryption during an ongoing investigation without a warrant. The examiner should:

Answer: Decline and advise that a warrant is required before conducting the examination

Without proper legal authority such as a warrant or recognized exception, assisting in bypassing device encryption constitutes participation in an unlawful search.