How flies help homicide detectives

23 September 2010 Last updated at 01:35 ET Help

Forensic Entomologist Amoret Whitaker explains how the study of the fly's life cycle can help homicide detectives catch murderers, by giving them information about how long ago a person is likely to have died.

Here she gives BBC News a tour of her working environment, including the 'insectory', at the Natural History Museum.

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