O2 ‘s evolution from BT-owned startup in the 1990s to what is now one of the most successful mobile operators in Europe has been, for a company which makes its money from selling talk-time, a relatively quiet process.

The telecom giant’s legal team, however, is anything but. Forthright general counsel Justine Campbell took the reins at O2′s legal team from the highly-rated Philip Bramwell when he moved to take on a role in the spotlight as general counsel at embattled defence company, BAE Systems, in 2006.