The Department of Justice has released newly revised uniform language for forensic testimony and reports – effective in August 2020. They are all posted on the DOJ website here.
In the fingerprint ULTR, for example, the new guidance adds (in addition to prior guidance that an examiner shall not use terms like individualize or claim infallibility):
Therefore, an examiner shall not:
o assert that a ‘source identification’ or a ‘source exclusion’ conclusion is based on the ‘uniqueness’3 of an item of evidence.
o use the terms ‘individualize’ or ‘individualization’ when describing a source conclusion.
o assert that two friction ridge skin impressions originated from the same source to the exclusion of all other sources.