The players' union in England has called for an amnesty from prosecution to encourage more cricketers to report approaches by fixers.
However, Angus Porter, the chief executive of the Professional Cricketers' Association, has said that players are reluctant to come forward for fear of being punished by the International Cricket Council.
Although it is a contractual obligation for players to report anything suspicious to the ICC's anti-corruption unit, Porter believes players have failed to contact the authorities, either through a lack of confidence in their ability to deal seriously with any allegations or a fear of becoming an outcast within their team, The Telegraph reports.
"There has been too much focus on what are the appropriate sanctions on people and not enough on what more we can do to assemble the evidence," Porter said.
"We should have a serious debate about the possibility of an amnesty which would encourage people to say what they know. Unless people do that we are unlikely to make a significant breakthrough. There are people with stories to tell but they have not reported them because they think, 'I had my chance and if I report it now I could be in trouble,'" he added.
According to reports, although players are pretty confident that anything they report will be treated confidentially, they believe it might not lead to a positive result in terms of a case being pursued.
The only charges that have reportedly been brought in cricket have been through a confession or a newspaper sting.