Lawyers for Hong Kong government argue Beijing’s decision endorsing ‘co-location’ arrangement ‘as good as binding’

• Appellants insist the set-up, which allows national laws to be enforced at the high-speed rail terminus in West Kowloon, violates the city’s mini-constitution
• Lawyers for the government, however, maintain any questions of constitutionality were cleared up when China’s top legislative body approved the scheme