Former Cabinet minister Chris Huhne and his ex-wife are to stand trial next Monday over claims she took speeding points for him so he could avoid prosecution.
Huhne and Vicky Pryce were both charged last year with perverting the course of justice over the allegation, linked to a speeding offence in 2003.
The accusations only emerged in 2010 after he admitted an affair with PR adviser Carina Trimingham and ended his 26-year marriage to Pryce.
Huhne stood down from the Cabinet following the charge last year, but remained the Lib Dem MP for Eastleigh.
Pryce previously pleaded not guilty on the grounds of marital coercion and Huhne on Monday also entered a not guilty plea at Southwark Crown Court.
Both defendants are on bail and their trial at Southwark Crown Court is due to start next Monday.