Former Met Police Commander Bob Milton said the UK police force has learnt "harsh lessons."
Forces have been criticised for a number of failures to stop Jimmy Savile's abuse by a police watchdog.
Mr Milton said: "I can assure you now that the advances made in the way we deal with rape cases now is much better than it ever has been."
He added that 1970s policing was all about "enforcing the law", but the police force today delivers a service, he said "we understand that we have to actually support people, support communities, support individuals."
A letter received by Scotland Yard in 1998 claiming the DJ was a paedophile was classed as "sensitive", hiding it from other investigators.
From the BBC to the hospitals to the prosecutors and now, it's clear, the police, Jimmy Savile's victims were let down by every authority.