See Hear investigates allegations against a British Sign Language (BSL) teacher: students claim she has taken their money and let them down by not turning up for classes and failing to register them for exams they have paid for; and the local Deaf Centre has banned her after questions arose over disappearing funds.

The programme also takes a look at how signing has changed ever since it was first recorded in the 8th century. See Hear meets the researchers charting current regional variations and the latest developments in BSL. With Radha Manjeshwar. Show less