MedicalXPress [medicalxpress.com]:
How similar do you think you are to your second cousin? Or your estranged great aunt?
Would you like to have people assess your behaviour from what your great aunt has done? How would you feel if courts used data gained from them to decide how you are likely to behave in the future?
Scientists are making connections between a person's DNA and their tendencies for certain kinds of behaviour. At the same time, commercial DNA databases are becoming more common and police are gaining access to them.
When these trends combine, genetic data inferred about offenders from their relatives might one day be used by courts to determine sentences. In the future, the data from your great aunt could be used by a court to determine how severely you are punished for a crime.
Your ability to be granted bail may hinge on your genes.