What is the policy concerning illegal bowling actions?

Answer 1

The ICC process for illegal deliveries is as follows:
There is a three stage process for dealing with bowlers reported as having suspect bowling actions in international cricket.
The ICC's Cricket Committee, under the chairmanship of Sunil Gavaskar, developed the new process to overcome problems experienced with the former system.
The main aim of the new process is to be fair to players involved, while also acting decisively in cases where officials suspect that a bowler's action contravenes the Law. Its administration requires all Boards and the ICC to set up their own groups of bowling advisors*, while the ICC will also establish a Bowling Review Group** to deal with the third, and final stage of the process.
Nothing in the process overrides the responsibility of the umpire to apply Law 24 on the field of play.
Reporting Procedure
This applies to all bowlers in Test and One Day International cricket:
standing umpire/s produce a report summarising concerns about any bowler with a suspect action, which is passed to the match referee
the referee provides detailed video footage of the bowler and a master copy of the tape is couriered immediately to the ICC in London
at the end of that day's play the referee notifies the team manager and the ICC of the report. Within 24 hours of notification the referee issues a media statement confirming that the player has been reported and will be subject to the review process.
Stage One
the home Board's bowling advisors review the referee's report and work with the player to correct his action. Within a six week period the advisors complete and send an assessment report to the ICC. This will be circulated to the player and the ICC panel of umpires and referees
during this period the bowler is allowed to continue playing
Stage Two
if the player is reported again within 12 months of the first report the ICC, in consultation with the relevant Board, will appoint one of its own advisors to work directly with the player on his action. A further detailed assessment will then be submitted by the ICC advisor within three months.
the report will be circulated as in Stage One and the bowler can continue to play Stage Three

a third report in 12 months will activate the ICC Bowling Review Group, which will meet with the bowler and his representatives to discuss the previous two assessment reports, video footage and any further evidence supplied by the player or his Board.

at the end of the hearing the player will leave and a vote taken to determine if he has an illegal action. If a majority is passed to this effect the bowler will be banned from bowling in international cricket for 12 months from the date of the hearing.
The ICC consulted with many former Test players and captains in developing the process, and believe it represents a fair but effective solution.
The system is designed to offer help and assistance to bowlers suspected of having problems with their actions. The three stages give ample opportunity for a player to overcome these and demonstrate conclusively that his action is entirely legal
Please note:

Bowling advisors will consist of ex-international cricketers with coaching experience. Groups are to include experts in all major styles of bowling.

The ICC Bowling Review Group will consist of a member of the Code of Conduct Commission as Chairman, a current referee, an ex-international player, an ex-international umpire, a human movement specialist and the ICC Cricket Operations Manager
The ICC Cricket Committee-Playing is made up of the following 13 members:
Sunil Gavaskar, India, chairman

Tim May, Australia
John Reid Jnr., New Zealand
Zaheer Abbas, Pakistan
Erroll Stewart, South Africa
Bandula Warnapura, Sri Lanka
Tiger Pataudi, India
Kevin Arnott, Zimbabwe
Michael Findlay West Indies
Faruque Ahmed, Bangladesh
Angus Fraser, England
Roland Lefebvre, Holland
Haralil Shah, Kenya

Their recommendations were in turn ratified by the ICC Cricket Committee-Management, made up of the full time chief executives of ICC member countries.

Answer 2

Please check the following link for details:

ttp://www.icc-cricket.com/icc/rules/terms_of_reference.pdf