From discussions with the EFDA-JET Task Forces in early 2000, a range of requirements emerged for higher spatial resolution Te and ne Thomson scattering measurements in various specific regions of JET plasmas. These requirements are summarized in table 1 and seek significantly better spatial resolution than is achieved or is achievable with the two LIDAR Thomson scattering systems currently working on JET (4Hz core LIDAR ~12cm; 1Hz Edge LIDAR 2-3cm, outer ~10cm only). Two High Resolution Thomson Scattering (HRTS) proposals were received from the Associations, one from C J Barth, (FOM) and one from P Nielsen and R Pasqualotto, (RFX). These, in their final form, used almost identical "90 degree" scattering geometry. The feasibility of making HRTS measurements is dependent upon successfully resolving several key issues, which are common to both schemes. For example: achieving a sufficiently low stray laser light level; achieving a sufficiently low background plasma light level; achieving relatively high collection and detection efficiency. Estimates of the first two of these items based on measurements taken on JET, are presented and discussed below. The issue of the collection window is also discussed briefly.