1. To determine whether any significant problem exists with regard to decompression sickness arising from diving practices in use by pearl divers in Broome. If such a problem exists to identify the particular schedules and practices responsible and to advise on modifications and safe procedures

2. To document the actual 'dive profile using a depth-time recorder

3. To document the 'bubble score' using the Doppler technique of evaluation of the dive profiles

4. To document the incidence of decompression sickness: -niggles - neurological (cerebral spinal) and - others (respiratory inner ear)

5. To document any long term health effects ( as a longer term objective using other funds)