National Crime Agency say Birmingham Academic one of the worst child sex offenders

An academic at Birmingham university’s pleaded guilty to 137 abuse charges including child sexual exploitation.

Dr Matthew Falder, 28, also admitted charges of voyeurism, making and distributing indecent images of children and encouraging the rape of a four-year-old.

Since 2010, the Birmingham University employee from Edgbaston, degraded and humiliated more than 50 victims online using the names "666devil" and “evilmind".

The disgraced geophysicist then threatened to expose his victims if they did not send severe and depraved abuse images of themselves.

Matthew Long, from the National Crime Agency spoke outside Birmingham Crown Court