are also able to carry out observations on a person's home or workplace, or make a visit to their employer.
Fraud squads in the North of England were tipped off about the hoax last week and warned youngsters not to turn up to auditions.
Fraud squads nationwide are now looking into the circumstances around the auditions.
In some cases where investigators found no blatant dishonesty, Nylenna's team notes, there had been some "deviation from good research practice." To deal with this, the Nordic fraud squads
have evolved a policy of explicitly describing and publicly reporting such questionable activities.
Det Supt Frank Glackin said the clampdown would involve the co-operation of fraud squads
across Europe and the regular exchange of officers.