Experts wary of ‘DNA’ samples

FORENSIC evidence taken by Portuguese police from scientists in Britain appears to be behind the recent dramatic twists in the Madeleine McCann investigation.

But forensic experts warned yesterday that any evidence needed to be treated with caution until the full facts of the case were known.

The samples of DNA now at the centre of the investigation — and the subject of questions put to the McCanns — were taken from two sources, according to reports.