The man who died in custody at Grimsby Police Station
has been named as 57-year-old David Hill, of Peaks Lane, New Waltham.
A post mortem examination has proved inconclusive.
His death is being investigated by the Independent Police Complaints Commission (IPCC).
A spokesman said: "David Hill, 57, died at Grimsby police station on 21 May, 2013. Humberside police have told the IPCC that he was arrested close to his home in Peaks Lane in New Waltham, near Grimsby, for the offences of criminal damage and affray.
"The IPCC was informed of Mr Hill's death at about 11pm on May 21.
"An IPCC investigator was sent to the station to speak to custody staff and view CCTV footage.
"At 3am it was decided that the circumstances surrounding the man's death would be independently investigated by the IPCC.
"IPCC staff have met with members of Mr Hill's family to explain the nature of the investigation."
Cindy Butts, the IPCC Commissioner for Humberside, said: "My sympathies go to Mr Hill's family during this very difficult time.
"I will ensure that our independent investigation determines if the correct procedures were carried out and all the necessary checks made during the time Mr Hill spent at Grimsby police station."
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