Prospecting is an outdoor activity subject to the same laws and restrictions as all outdoor activities at this time. The Tasmanian Government's current advice is to "Stay home unless you absolutely must go out." For example to collect essential supplies, to go to work or school, to exercise, or to care for someone.
MRT would like to refer those considering prospecting to https://www.coronavirus.tas.gov.au/ for information on what is currently permitted in Tasmania.
If you are still unsure, please ring 1800 671 738 Tasmania's public health hotline.