Emiel Blankert was admitted to King’s Mill Hospital on Monday night (9th December 2013) with injuries to his face and chest.
Police are hoping residents of the Ladybrook area of Mansfield can help piece together his movements over the weekend in a bid to establish how he received his injuries.
The 48-year-old, who is originally from Holland but has lived in Mansfield for nearly 20 years, does not usually stray too far from his home in the Ladybrook estate.
Enquiries have established that he entered The Ladybrook pub in Ladybrook Lane at 4.05pm on Monday.
Officers are keen to hear from anyone who saw or spoke to Emiel between Friday morning and 6.30pm on Monday.
He is described as white, around 5ft 10ins tall and of medium build. He has green eyes, collar-length brown hair and is often unsteady on his feet.
Det Chief Insp Andy Crouch said: “So far we have been able to establish some of Emiel’s movements but there are periods of time that we simply do not know where he was.
“We are reviewing hours of CCTV footage and speaking to his friends in a bid to trace his steps but in the meantime we think there will be people out there who can help us build a picture of his weekend.
“Emiel is an affable chap who is well known in the area. He is currently critically ill in hospital. How did he get to be in this condition?
“Do you know him? Did you see him at any point between Friday morning and Monday evening? He may have had visible injuries to his face.
“We are very keen to speak to anyone who has had contact with him during this time who can help us fill in the gaps.”
A 48-year-old woman has been questioned as part of the investigation, but officers are still keen to hear from anyone with any information.
DCI Crouch added: “We are very much open to the number of possible causes of his injuries. Was he assaulted? Did he fall over? Was he hit by a car? If you can help answer any of those questions please call us.”
If you have any information about Emiel’s movements or how he came to be injured contact Nottinghamshire Police on 101 or call Crimestoppers anonymously on 0800 555111.