Jayesh Tank was the second witness to be called for the claimants during the Horizon trial on 12 March 2019. You can read both his witness statements on scribd here (WS1 here and WS2 here) or embedded below. You can read the transcript of his cross-examination here and you can read my report on the day's evidence here.
Horizon trial: Jayesh Tank witness statement 1 by Nick Wallis on Scribd
Horizon trial: Jayesh Tank witness statement 2 by Nick Wallis on Scribd