article_snippet.sent: Instead, police and other official agencies insisted carbon monoxide from a faulty pump hired by Little Zane Gbangbola family had caused Little Zane Gbangbola death.
article_snippet.sent: Last night, claims of a cover-up over Zaneby police, the Environment Agency, Public Health England and local authorities intensified when the documents uncovered by the MoS also revealed no traces of carbon monoxide had been detected at the home in Chertsey, Surrey.
article_snippet.sent: The force spent the next 11 months investigating carbon monoxide poisoning as the cause, before dropping The force case in January on advice from the Crown Prosecution Service that there was no case to answer in relation to a hired petrol-powered pump in the family's home which they insist was never switched on.
article_snippet.sent: The pathologist gave a result of carbon monoxide intoxication.'
highlights_snippet.sent: Authorities insisted carbon monoxide from faulty pump in house caused Zane Gbangbola death .
  
highlights_snippet.sent: Carbon monoxide was never detected in the family's home; .
  