Members of the emergency services will be back at the scene of an explosion in Newark today.
A man and a woman died in the blast at a house. Specialists will now try to establish what led to the explosion.
It has been suggested it could have been the result of DIY being carried out at the property, but police are keen to stress they are keeping an open mind.
More top news
The inquests have heard that Mr Marshall did not check for signs of life on people in the immediate aftermath of the disaster.
Update for Yorkshire and Lincolnshire with Jon Mitchell.
Approximately 65 firefighters have been tackling a blaze at a waste site in Hull.