A senior lawyer at Google has warned that the tech giant will have to report any acquisition it makes anywhere in the world as a result of the interplay between a new antitrust rulebook and Brussels officials’ recent, more aggressive approach to merger review.

Google senior competition counsel Tero Louko said its recent designation as a “core platform service” under the Digital Services Market Act and the EU’s more aggressive scrutiny of small mergers had put the Mountain View-headquartered company in front of a herculean challenge.