Alstom, a manufacturer in the rail, power and electricity transmission sectors, has been at the centre of a seven-year-long global investigation for alleged corruption.

UK's fraud prosecutor has in the past brought charges of corruption against two UK-based Alstom units. It first charged Alstom Network UK in July 2014.

Watson is to appear at Westminster Magistrates' Court on April 5.

http://uk.reuters.com/article/uk-sfo-alstom-idUKKCN0WV1WP