perhaps, its because as was said in media report I just read. That it was to be a non invasive DNA retrieval method. the articles states..It is a 'non-intimate' order that means police cannot invade body cavities to retrieve the sample.
That is likely why it was hair and not a mouth swab. IMO
He could take the swab himself, so there is no need for police to 'invade' his body cavities. So he's either refused, or they need the hair for other tests.:moo: