Former BSI Singapore banker Yeo Jiawei has been convicted over witness-tampering charges in relation to the island-state's investigations on 1MDB's money trail.

District Judge Ng Peng Hong said Yeo was an "unreliable and not a credible witness" before finding him guilty. Yeo faces a maximum seven-year jail sentence. Sentencing will take place tomorrow.

Over the course of the trial, prosecution witnesses testified that Malaysian tycoon Jho Low was Yeo's client and that the two enjoyed very close ties.