With respect to part (a) of the question, the Ministry of Defence has policy responsibility for the following Acts which remain in force:
The Armed Forces Acts 1976; 1981; 1986; 1991; 1996 and 2001
The Armed Forces Discipline Act 2000
The Armed Forces (Pension and Compensation) Act 2004
The Army Act 1992
The Atomic Weapons Establishment Act 1991
The Crown Proceedings Act 1987
The Greenwich Hospital Act 1990
The Ministry of Defence Police Act 1987
The Reserve Forces Acts 1980 and 1996
The Protection of Military Remains Act 1986.
No Acts have been identified in respect of part (b) of the question.