Big-ticket litigations may be fewer on the ground, but for some law firms, global anti-corruption probes are racheting up.

This spring saw several significant enforcement actions and megasettlements under the Foreign Corrupt Practices Act, including Dutch telecom VimpelCom’s $795 million deal with U.S. and Dutch regulators to resolve conspiracy charges related to bribery of officials in Uzbekistan, and an ongoing probe of hedge fund Och-Ziff Capital Management Group LLC’s link to a $100 million loan to Robert Mugabe and other Africa dealings.