The Health and Safety Executive is now leading the investigation after a Royal Estate worker at Sandringham had to be rescued from a lake .
The gardener who is in his 30's was on a ride-on lawn mower when he fell into the water. He remains in a critical condition at Addenbrookes Hospital. Norfolk Police say they are no longer leading the investigation into the incident.
More top news
New research shows which words children in the East find hardest to say.
A warm start with mist and fog in places. Brighter and even warmer throughout the afternoon.
Britain has seen its driest first half of September since before the 1960s and it's also been rather warm.