Mr Larkin said retrospective measures which have survived legal challenge involved questions of public safety, such as those in relation to sex offenders working with children.

BBC: John Larkin

There is Tory anger over what they say was the police's use of the controversial term "groomed" because it is usually used in relation to child sex offences.

BBC: Tory MP leak inquiry 'continuing'

Because our ecologic observation from 24 years ago initially drew attention to menthol, we decided to examine ecologically the changes in the rates of four smoking-related cancers by race and sex from 1973 to 2007 in relation to the prevalence of smoking of mentholated cigarettes.

FORBES: Will Removing Menthol From Cigarettes Improve Health?

This is the first of two report stage days, with amendments grouped into several subjects - (a) sex education, (b) conscientious or other objection to marriage of same sex couples, (c) equality law, (d) religious organisations' opt-in to marriage of same sex couples, and (e) protection against compulsion to solemnize marriages of same sex couples or to carry out activities in relation to the solemnization of such marriages.

BBC: Week ahead