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Bodyworn camera footage showed her listening to the arresting officer, wide-eyed but quiet and compliant.

She was arrested in July that year, immediately telling the arresting officer that her husband "doesn't know anything about this".

Further bodyworn footage from the officers arresting Nodwell later on also shows him being aggressive, shouting and swearing at officers, biting the boot of one and spitting at another.

A senior detective described that as a "sliding doors moment", while one of the arresting officers said the knowledge he had prevented further killings was "very overwhelming".

In footage released by Thames Valley Police, Mugambe appeared shocked when an officer said he was arresting her under the Modern Slavery Act.