An inventor on Queensland's Gold Coast says he has come up with a way to protect swimmers and surfers from sharks.
Bill Morrison says he approached the State Government to trial the 'beach barrier', but never received a response.
Last month, 21-year-old Sarah Whiley died when she was attacked by a shark at Amity Point on North Stradbroke Island.
Mr Morrison says his invention will repel sharks, but will not trap marine animals.
"It's just like a rope ... with an electronic shark barrier attached to it at different sections of the rope," he said.
"That just sends an electronic field to the ocean floor and sort of just puts an imaginary fence up."
The manager of Queensland's shark control program, Baden Lane, says there is no proof that the device repels sharks.