The 1980 Hague Convention is an agreement between certain countries which aims to ensure the return of an abducted child to the country where he or she normally lives.
All cases that come under the Hague Convention are dealt with by the Central Authorities in the UK.
To find out which countries are part of this Convention, visit the Hague Conference Website.
If a child has been taken to a country that has not signed the Hague Convention parents may need to apply for custody and permission to bring their child back to the UK through the courts of that country.
More top news
Delivery company Deliveroo insists the majority of its riders are happy, as an ITV News investigation reveals the hardship of life for many.
Bavaria is set to roll out a ban of the full-face veil in a number of public places, including schools and universities.
A man who used a pickaxe and sledgehammer to ruin Donald Trump's Hollywood Walk of Fame star has avoided jail.