What’s the Georgia criminal defense strategy when DNA evidence is inconclusive?
DNA evidence is often regarded as highly probative in Georgia cases, but results are not always definitive, and inconclusive findings raise distinct questions. When DNA evidence does not produce a clear result, the focus shifts to what the evidence can and cannot establish.
The meaning of an inconclusive result is a starting point. An inconclusive finding does not establish a connection between a person and a sample, and it may reflect a degraded sample, an insufficient quantity of material, or a mixture of contributors. What such a result actually indicates is therefore a key consideration.
In practice, the handling of samples can be relevant. Biological evidence is subject to alteration, and the chain of custody and the conditions under which a sample was collected, stored, and tested can bear on the integrity of the result. Questions about contamination or degradation may arise.
The interpretation of mixtures and partial profiles is another area. Where a sample contains genetic material from more than one person, or yields only a partial profile from a limited quantity of material, the analysis becomes substantially more complex. The assumptions an analyst makes in interpreting such a sample, and what can reliably be concluded from it, can both be examined.
When DNA evidence is inconclusive, the central question becomes what the result genuinely shows rather than what it might be assumed to show. An inconclusive finding can arise from a degraded or insufficient sample, from handling problems, or from the difficulty of reading a mixture, and each of those origins carries different implications for the case.