Christian Brückner has been on trial over alleged rape of three women and two charges of child sexual abuse in Portugal

A verdict in the rape trial of a man who is the main suspect in the disappearance of Madeleine McCann is expected to be reached on Tuesday in a decision that could prove crucial to further investigations in the case of the toddler who went missing 17 years ago.

Christian Brückner, 47, has been on trial since February on charges that he raped three women and committed two child sexual abuse crimes, allegedly carried out in Portugal between 2000 and 2017.