if you empty your pond, the newts would relocate themselves, if another pond near by, They not territorial and should be ok, If think got great crested newts,should contact your Wildlife trust for advice, Catching and transfering newts to another pond could be dodgy if seen doing it without permission,,,,,,,,Think your trust number is 01823 652400 [Wellington] Email enquires@somersetwildlife.org,,,,Hope that helps,,,,, [ breeding time early April to early August, depending local variations]