Born in Mansfield, Nottinghamshire, Redfern began her county career with East Midlands in 1992, switching to Derbyshire in 1997 and Staffordshire in 2003, finally retiring after the 2008 season.

[1] Her international career began in July 1995, at the age of 17, when she played European Championship matches against the Netherlands, Denmark, and Ireland.

[3] Redfern's best performance for England came in a five-match One Day International (ODI) series against South Africa in August 1997.

[5] During the 2016 ICC World Cricket League Division Five tournament in Jersey, she was one of the on-field umpires during the fixture between Oman and Nigeria on 22 May.

[7] In January 2017, she was one of four female umpires named by the ICC to stand in matches in the 2017 Women's Cricket World Cup Qualifier.

[15] In July 2021, she was an on field umpire in the inaugural game of The Hundred (cricket) in the Oval Invincibles vs Manchester Originals women's teams.