The International Cricket Council (ICC) on Tuesday confirmed that an independent test had found the bowling action of the West Indies off-spinner Shane Shillingford to be illegal.
The player was earlier suspended from bowling in international cricket.
According to an ICC media release, a comprehensive analysis revealed that his mean elbow extension was 17 degrees which is above the 15 degrees level of tolerance permitted under the relevant regulations.
Shillingford can now apply for re-assessment of his action after he has modified is bowling action in accordance with clause 2.4 of the regulations for the review of bowlers reported with suspected illegal bowling actions.
The independent analysis was performed by Prof Bruce Elliott, member of the ICC Panel of Human Movement Specialists, at the School of Sport Science, Exercise and Health, University of Western Australia (UWA), Perth December 9.
Shillingford was reported after the end of the Galle Test against Sri Lanka last month by on-field umpires Steve Davis and Richard Kettleborough, along with TV umpire Asad Rauf, and fourth umpire Tyron Wijewardena.
The 27-year-old from Dominica has the right to appeal against UWA's conclusions to the Bowling Review Group, in accordance with clause 2.3 of the regulations for the review of bowlers reported with suspected illegal bowling actions.
Shillingford has taken 14 wickets in five Test matches so far along with 230 wickets in 63 first-class games.