I have hunch that with the right NLP you could probably do this, at least in the UK. Every now and then I've looked at proposed alterations to acts of parliament and they've mostly been in a format like "In section 3a, paragaph 4, replace 'carrying a maximum sentence of 3 years' with 'carrying a maximum sentence of 5 years, and a sign in the town square telling everyone you're a bad person'".