An American couple are facing murder charges in Qatar over the death of their young adopted daughter, in a case which lawyers and medical experts in the US say is based on shoddy evidence and poor science.

A campaign has been launched in the US over the arrest of Matthew and Grace Huang in January after the death of their nine-year-old daughter, Gloria, who was adopted from Ghana.

According to the California Innocence Project (CIP), a US-based organisation which works on what it believes to be wrongful prosecutions, the Huangs have been denied bail, and their two other children – also adopted from African countries – have not been allowed to leave the country.

Read more on Al Jazeera’s website