More than 130 cockle pickers were rescued from Morecambe Bay after they became stranded when two tractors collided.
Police launched a search and rescue operation to help the cocklers to safety late on Saturday morning.
Police and RAF rescue helicopters and inshore lifeboats were called to the scene four miles from the coast near Newbiggin, close to Barrow.
A spokesman for Cumbria Police said they were considering whether to bring criminal charges against any of those involved in the incident.
He said: "Further inquiries are continuing in relation to criminal matters and our officers are liaising with the Health and Safety Executive over safety issues."
At least 21 Chinese cockle pickers were killed just a few miles away near Hest Bank in February after they became stuck as the tide came in.
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