Complex sentence: Some constitutional lawyers had questioned the validity of the 1949 Act; these doubts were settled in 2005 when members of the Countryside Alliance unsuccessfully challenged the validity of the Hunting Act 2004, which had been passed under the auspices of the Act.
Split into simpler sentences: Some constitutional lawyers had questioned the validity of the 1949 Act. These doubts were rejected in 2005 when members of the Countryside Alliance unsuccessfully challenged the validity of the Hunting Act 2004, which had been passed under the auspices of the Act.