The present invention relates to methods and arrangements in a mobile telecommunication system to generate interception related information IRI, including geographical location of a monitored mobile subscriber/equipment. The system is configured to provide to an Intercept configuration unit ICU, information collected from an Intercept Access Point IAP; MSC. The system is also configured to proceed with a Network Induced Location Request NI-LR procedure, which method comprises the following steps: —Receiving to the Intercept Access Point from the Intercept configuration unit, a request to monitor the mobile subscriber/equipment, —Detecting in the Intercept Access Point of a specified Interception Related Information activity IRI involving the monitored subscriber/equipment, —The Intercept Access Point IAP; MSC initiates start of the Network Induced Location Request NI-LR procedure.