Mr Collins, from Manchester-based law firm Pannone, said the reason more people had not gone to the police about Savile was because of how wide the Jersey historical abuse inquiry was.
The Historical Institutional Abuse Inquiry in Northern Ireland is to launch a promotional campaign later in an attempt to get more victims to come forward.
Scotland Yard has so far detained 11 people under Operation Yewtree, its inquiry into historical allegations of sexual abuse linked to the entertainment industry.
Scotland Yard has so far arrested 11 people under Operation Yewtree, its inquiry into historical allegations of sexual abuse linked to the entertainment industry.
The Historical Enquiries Team will not comment on what potential new lines of inquiry have been identified, but the BBC understands it may have been made aware of a potential new witness who could have information about what happened, and has not previously been interviewed by the police.