In which case was a conviction overturned due to lack of evidence integrity?

The correct answer involves the case of Farrah Abdulkadir. In this case, the conviction was overturned primarily due to concerns regarding the integrity of the evidence presented during the trial. The court identified that the evidence could not be trusted due to issues related to its collection or handling, which compromised the reliability of the prosecution's case.

The integrity of evidence is crucial in criminal cases, as it ensures that the findings are based on accurate and credible information. This case illustrates the necessity for law enforcement and prosecuting bodies to adhere to strict protocols when collecting and processing evidence, as any lapse can ultimately lead to wrongful convictions and the undermining of public confidence in the legal system.

In contrast, other options may not have involved the same circumstances regarding evidence integrity that led to a conviction being overturned.