It can be more difficult to successfully find missing children after years pass because they change so dramatically until they reach adulthood. Whether it's losing the round baby-face or the addition of facial hair and the obvious body changes, time is not on investigators' side to crack these cases.
Each year over a million missing persons cases are reported in the US and UK, which leaves families desperate to get some answers.
Now, there is new hope in aiding in this search that has investigators eager for a breakthrough in some cold cases.
Using missing child Ben Needham, who went missing as a toddler in 1991 in the Greek Island of Kos, as an example, the new software produced a much different image than the current face-aging software, which could suggest that investigators were working with out-of-date tools. It is their hope that this software can spark some new breakthroughs in existing missing persons cases.
Continue to the next page to see how it could affect the case of Madeleine McCann.