ISLAMABAD -- Pakistan President Asif Ali Zardari holds $1.5 billion in assets across the world, Pakistan's main anticorruption body alleged in a report delivered Tuesday to the country's Supreme Court.

The court is considering the constitutionality of an amnesty protecting the embattled leader and thousands of other officials from corruption charges. The National Accountability Bureau, a politically independent government investigative body, gave the court a list of allegations involving Mr. Zardari, following a request by...