A Sinn Fein councillor arrested during a police swoop in Dungiven on Wednesday has demanded a public apology from the PSNI.
Councillor Tony McCaul, a member of the Causeway Coast and Glens shadow council, is also considering legal action and stepping down from the Policing Community Safety Board (PCSB).
The 62-year-old was arrested with two men in their 50s and a 31-year-old in connection with paramilitary activity in the Dungiven area over the past four years.
Mr McCaul was released unconditionally on Thursday with the three others.
A fifth man (53) has been released pending a report to the Public Prosecution Service.
Mr McCaul said he was baffled by his arrest and the PSNI raid.
He said: "I feel very, very disappointed that I was arrested at all, I am on the PCSB and I work very closely with the community police, going around doors with them, talking to people about crime.
"It baffled me because it made absolutely no sense to me because of my work with the police on the PCSB."