The availability of a kaon beam in the CERN SPS North Area gives a unique possibility of making tests of the Standard Model in the flavour physics sector. The HIKE programme has been presented at CERN to study rare decays of charged and neutral kaons with unprecedented precision. The realization of this programme will allow for tests of lepton flavour universality and lepton number conservation, as well as other precision measurements in the kaon sector and exotic
particle searches.