Simmons & Simmons has hired Denton Wilde Sapte’s respected head of environment and safety, Jacqui O’Keeffe, in a rare City hire for the top 20 UK firm.

O’Keeffe started at Simmons this week (16 January) and will head the London firm’s six-lawyer international environment group, replacing Mike Nash, who left the firm last month to join the in-house department of oil giant BP.