They're certainly not ones which involved just the odd drink or a meal to police officers or other public officials. These are cases in which arrests have been made involving the delivery of regular, frequent and sometimes significant sums of money to small numbers of public officials by journalists. Some of the initial emails reveal, upon analysis, that multiple payments have been made to individuals amounting to thousands of pounds. In one case, over a period of several years, this amounts to in excess of £80,000.
There's also mention in some emails of public officials being placed on retainers, and this is also a line of enquiry that we're exploring. One of the arrested journalists, for example, has, over several year, received over £150,000 in cash to pay his sources, a number of whom were public officials. Not all, but a number.