Rehman was elected co-Chair of the All Party Parliamentary Group (APPG) on Runaway and Missing Children and Adults, with Baroness Hamwee serving as the other Co-Chair.
In 2018/19, approximately 176,000 people were reported missing and the APPG will aim to champion and raise awareness of this crucial cause.
The charities, The Children's Society and Missing People, will provide the Secretariat to the APPG.