A 54-year-old man has been arrested by detectives investigating the murder of a policeman in 1981.
RUC Reserve Constable John Proctor was shot in the Mid Ulster hospital car park as he visited his wife and their new-born son.
The 25-year-old had been an RUC reservist for two years.
The man was detained in Swatragh in County Londonderry on Monday morning by officers from the PSNI’s Serious Crime Branch.
He was taken to Antrim police station for questioning.
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