Q. How does DNA evidence prove innocence? What does the testing process entail?

A. We work with prosecutors or courts to agree on private or public labs to conduct testing on evidence connected to a particular crime. In 82% of cases for which records are available, prosecutors eventually agreed to grant testing. In other cases, access to DNA testing was granted through court orders.

Once testing is granted, scientists choose from several forms of DNA testing depending on the evidence (for example, a particular type of testing is used on hair). The DNA profile from evidence in the case is compared to our client’s DNA sample to determine whether our client is the source or someone else is.

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