Lambton OPP are investigating a theft from Grand Bend Beach last Sunday.
Police said a suspect made off with a pair of shoes sometime between 1:30 p.m. and 6 p.m.
The victim indicated to police that inside the shoe was a cochlear implant, and it too was missing.
The electronic hearing device is valued at over $10,000.
Lambton OPP are asking anyone with information to contact them or Sarnia-Lambton Crime Stoppers at 1-800-222-8477.