 After the liberation Mandel's remains were exhumed at Ryvangen and transferred to the Department of Forensic Medicine of the university of Copenhagen.On 7 July 1945 a memorial service was held for him in Mariendal Church where he had been baptized and confirmed.On 29 August 1945 Mandel and 105 other victims of the occupation were given a state funeral in the memorial park founded at the execution and burial site in Ryvangen where his remains had been recovered.