A mobile telecommunications network including: a core network having content processing means (2060, 2070) operable to provide a core network service relating to content, the core network service including lawful interception and/or charging, and a radio access network (700, 2003) having radio means for wireless communication with a terminal registered with the telecommunications network, wherein the radio access network (700, 2003) includes a local source of content, wherein the telecommunications network is arranged to: deliver (Figure 14: step 3,4) content from the local source of content to the terminal, to-send (Figure 14: step 4) to the core network, from the local source of content, an indication of the content requested by the terminal that is stored on the local source of content, obtain (Figure 14: step 5) at the core network via a packet buffer, from a primary content source a copy of the content of the local source of content requested by the terminal, and provide (Figure 14: step 6) by the content processing means at the core network (2060, 2070) core network service in relation to the copy of the content, characterised in that: the delivery of content from the local source of content to the terminal is delivery as a plurality of content items comprising a plurality of packets; and the indication of the content requested by the terminal is an indication of one of the plurality of content items requested by the terminal from the local source of content and enables a copy of the one of the plurality of content items to be identified and retrieved from the primary content source to provide the content processing means (2060, 2070) core network service in relation thereto, wherein a copy of a subsequent one of the content items is not identified and retrieved from the primary content source, and the content processing means (2060, 2070) does not provide core network service in relation thereto, until said one of the content items is successfully delivered from the local source of content to the terminal. a core network having content processing means (2060, 2070) operable to provide a core network service relating to content, the core network service including lawful interception and/or charging, and a radio access network (700, 2003) having radio means for wireless communication with a terminal registered with the telecommunications network, wherein the radio access network (700, 2003) includes a local source of content, wherein the telecommunications network is arranged to: deliver (Figure 14: step 3,4) content from the local source of content to the terminal, to-send (Figure 14: step 4) to the core network, from the local source of content, an indication of the content requested by the terminal that is stored on the local source of content, obtain (Figure 14: step 5) at the core network via a packet buffer, from a primary content source a copy of the content of the local source of content requested by the terminal, and provide (Figure 14: step 6) by the content processing means at the core network (2060, 2070) core network service in relation to the copy of the content, deliver (Figure 14: step 3,4) content from the local source of content to the terminal, to-send (Figure 14: step 4) to the core network, from the local source of content, an indication of the content requested by the terminal that is stored on the local source of content, obtain (Figure 14: step 5) at the core network via a packet buffer, from a primary content source a copy of the content of the local source of content requested by the terminal, and provide (Figure 14: step 6) by the content processing means at the core network (2060, 2070) core network service in relation to the copy of the content, characterised in that: the delivery of content from the local source of content to the terminal is delivery as a plurality of content items comprising a plurality of packets; and the indication of the content requested by the terminal is an indication of one of the plurality of content items requested by the terminal from the local source of content and enables a copy of the one of the plurality of content items to be identified and retrieved from the primary content source to provide the content processing means (2060, 2070) core network service in relation thereto, wherein a copy of a subsequent one of the content items is not identified and retrieved from the primary content source, and the content processing means (2060, 2070) does not provide core network service in relation thereto, until said one of the content items is successfully delivered from the local source of content to the terminal.