The one-hour show, with allegations of race fixing, betting scams and jockeys mixing with criminals, made headlines on the front and back pages.

Many inside the sport were relatively unsurprised by Panorama's expose but racing's image with the general public was dragged through the mud.

And while the Jockey Club, racing's governing body, denied many of the allegations made - in particular that it was turning a blind eye to corruption - it has subsequently taken measures to boost racing's integrity.

A year on, BBC Sport revisits the main Panorama accusations and assesses what has been done to combat corrupt practices within horse racing.

1. Race fixing and doping; jockeys mixing freely with criminals

Dermot Browne was a major plank in Panorama's case and the ex-jump jockey admitted doping over 20 horses during his riding career.

PANORAMA TIMELINE 2002 6 Oct 2002: BBC airs Panorama racing expose 9 Oct: Jockey Club security chief Jeremy Phipps resigns 17 Oct: Jockey Club Integrity Review Committee reconvenes 21 Nov: Dermot Browne warned off for further 20 years 29 Nov: Graham Bradley warned off for eight years, later reduced to five on appeal

At the time of the programme, Browne was serving a 10-year ban from the sport. This ban has now been extended for a further 20 years by the Jockey Club.

Another ex-jockey put in the spotlight by Panorama was Graham Bradley, who admitted in court to receiving cash for passing on privileged information to Brian Wright, a convicted drugs baron who is currently on the run.

Bradley was already under investigation by the Jockey Club. He has since been banned from racing for eight years, although this was reduced to five on appeal and he is taking his case to the High Court.

Bradley had revealed that he had used his mobile phone in the weighing room to keep Wright informed of last-minute developments before a race.

The Jockey Club has since brought in a controversial ban restricting the use of mobile phones on the racecourse by jockeys.

2. Bookmakers had in the past offered "no-lose" betting accounts to trainers

Panorama claimed that bookmaker Victor Chandler had sent letters to trainers Jimmy Fitzgerald and Gay Kelleway, allegedly offering them free bets.

PANORAMA TIMELINE 2003 28 Jan 2003: Integrity group publishes anti-corruption measures - including restrictions on jockeys' use of mobile phones 11 Feb: Jockey Club unveils new regulatory framework for governing racing 1 July: Security group suggests overhaul of Jockey Club security dept but says no evidence to support claim that racing is "institutionally corrupt" 1 Sept: Phone restrictions begin, sparking jockey protests; ban on owners, trainers and stable staff betting against their own horses

This practice was outlawed by the Jockey Club in 2001 and the bookmaker says it had long ago discontinued the practice.

In an earlier BBC programme, Kenyon Confronts, trainer Ferdy Murphy had been secretly filmed claiming �1,600 had been made by 'laying', or betting against his horse.

At a Jockey Club hearing last November, he was fined �4,000 for bringing racing into disrepute.

The Jockey Club has since introduced new regulations banning trainers, owners and stable staff from laying their horses on betting exchanges.

3. The Jockey Club had failed to police the sport

Panorama based its programme around Roger Buffham, the Jockey Club's former head of security, who accused his ex-employers of lacking "the moral courage and resolve to deal with (the problem of corruption)".

Days after the programme aired, the then head of security Jeremy Phipps resigned and Sports Minister Richard Caborn told the Jockey Club that reform was needed to reassure the public of racing's integrity.

A review into Jockey Club security was set up - it concluded that there was no evidence to back up Panorama's claim that the sport was "institutionally corrupt" but also recommended a complete overhaul of their club's security department.

The Jockey Club's Integrity Review Committee, which had first sat in 2000, was reconvened following the lifting of reporting restrictions on the trials relating to the activities of alleged drugs baron Brian Wright and his associates.

In January, the committee published its report, which made four main recommendations: