Search And Rescue :
Search: An operation, normally co-ordinated by a rescue coordination center or rescue sub-center, using available personnel and facilities to locate persons in distress.
Rescue An operation to retrieve persons in distress, provide for their initial medical or other needs, and deliver them to a place of safety; (Source: SAR Convention 1979, Chapter 1.3.1-2 http://opac.vimaru.edu.vn/edata/EBook/Sar%20Convention,%201979.pdf)