Police 'struggling' with historical child abuse workload
6 October 2013 Last updated at 01:23 BST
The NSPCC believes some police forces are struggling to deal with an increase in historical child abuse cases after the BBC obtained figures indicating a fall in the number of these types of arrests.
The number of allegations rose by 70% after Jimmy Savile's past was revealed but the number of arrests fell by 6% over the same period.
Greater Manchester Police has seen a 121% increase in allegations of historical child abuse.
"It is not an ideal scenario to be in but ultimately we have to prioritise the cases," said Detective Inspector Neil Charnock.
Listen to the full report on 5 live Investigates on BBC Radio 5 live on Sunday, 6 October at 11:00 BST or download the programme podcast.