Dibb Lupton Alsop's Brussels office is launching a campaign to fight the European Commission over plans to change the laws covering e-commerce.
The EU wants to make companies trading on the internet subject to the different laws of all 15 member states.
"It would be an untenable situation," says Mike Pullen, an associate in Dibbs' Brussels corporate department who is spearheading the campaign.
"If this legislation is adopted, anyone operating an e-commerce business or planning to do business online could be brought before foreign courts simply because their website is accessible in other EU countries," he says.
Dibbs has organised an "e-commerce and jurisdiction forum", to be attended by MEPs and commission members, to co-ordinate an industry response to the proposals.
Despite the implications of the proposed change which, claims Pullen, threatens to set e-commerce back 20 years, he says that industry and the legal profession are largely unaware of the problem.
"It creates a massive amount of legal uncertainty, and goes against the whole ethos of the internal market," he says.