The principle of LIDAR Thomson Scattering has proven a valuable tool at JET. In connection with the new pumped divertor at JET we are installing a new LIDAR scattering system to diagnose the divertor plasma. The new system requires better spatial resolution than the present system and will therefore make use of a streak camera for detection. A streak camera can be used over a shorter measurement range. Recent experiments in the plasma edge were conducted to verify this technique. One of the weaknesses of the present system has been the relatively low repetition rate. Two new ruby lasers with higher repetition rate will be employed in the JET LIDAR scattering systems in the future. Particular emphasis will be put on describing the laser using Stimulated Brillouin Scattering for pulse compression. The implications for ITER of our experience with the JET LIDAR scattering systems are discussed.