In March 2021 he became the highest ranked British officer to be convicted at a court martial in over 200 years.

[16] After leaving the army, Welch was appointed Chief Operating Officer of Arts University Bournemouth in 2018.

[20] However records showed that Welch's wife spent the majority of her time at the couple's cottage in Dorset rather than London.

[21] At a four week court martial held in March 2021, Welch has found guilty of dishonestly and fraudulently claiming £48,000 of school fees from 2015 to 2017 and was sentenced to 21 months in a civilian prison.

[24] It was reported that Welch was the most senior Army officer to face a court martial since 1815.