Generally speaking a person’s DNA does not change over a lifetime. However, like many general rules, there are some exceptions.
Although it is rare, criminal defense attorneys should be aware of a rare process known as “somatic mutation”, which can result in slight changes to one’s DNA.
It is also possible that certain lifestyle choices may produce genetic changes. For example, allelic alteration (which is a change in one’s allele) has been reported in the cells of some cancer patients and betel quid-chewers.
It could be the result of cancer treatment, or there may be additional causes at play.
If you have a fact-specific question, contact a Buffalo criminal defense attorney for legal advice.