A London court denied petition environmental groups halt construction on hydroelectric dam rain forest in Belize, although justices will hold hearing December to listen arguments challenging environmental approval of the project.
A judicial committee Privy Council refused grant the injunction against Fortis Inc., Canadian company set build the Chalillo Dam, unless groups opposed construction posted a large bond cover potential costs litigation.
But ruling could grant an injunction civil case, the court set precedent civil rights.
Previously, stays were reserved executions death row cases.
Environmental other groups have opposed dam, arguing that would threaten rare endangered animal species questioning the legality permits obtained build project.
Fortis executives have insisted approval dam obtained according law.
The Privy Council, which highest court appeal many Commonwealth countries, raised questions about law passed recently Belize designed shield Fortis project from the law.