The Migrants' Rights Network said the test was "like an entry examination for an elite public school".

BBC: UK citizenship test 'to cover Britain's greats'

The Sowerby's whale was too big to be taken for a post-mortem examination, but members of the trust's Marine Strandings' Network collected measurements, photographs and skin samples to be analysed by the Institute of Zoology.

BBC: Dead rare dolphin and whale found

Prosecutors' examination of researchers such as Mr. Kinnucan, as well as expert network firms has left investors wary about how to research stocks.

WSJ: Insider Probe Focuses on Supply-Chain Data