Too easy.

1) Richard Tinmey, the Home Secretary’s husband, caught claiming pornography on parliamentary expenses.
Times Article

2) Jacqui Smith, the Home Sectrectary, caught designating her sister’s house in London as her ‘main residence’, allowing her to claim £116,000 on her Redditch constituency house, her actual family home.
Times Article

3) Derek Conway, under investigation by the Parliamentary Commissioner for standards for paying his teenage son £11,773 to ‘work’ for him.
Times Article