The man was arrested in Ipswich this morning.
The Serious Organised Crime Agency says it is the first arrest as part of Operation Pallial, which last November started investigating recent allegations relating to historic child abuse in North Wales.
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Channel 4 claims to have uncovered footage of a Welsh call centre hired by the Tories to directly contact marginal voters.
The average annual car insurance premium in Wales now stands at £539.
The decision was confirmed during an 80-minute coaches' selection meeting on Wednesday.