A Mandurah man remains in Royal Perth hospital, after he allegedly ram-raided a Greenfields workshop, and was confronted by the owners of the premises.

Pat Fisher, and his son, were alerted to the attempted burglary by the security system at their mower business.

The pair confronted the intruder, who fell to the ground unconscious, before being taken to hospital.

Mr Fisher’s son was detained by police and has been questioned over the incident. Charges have not been laid as yet.

Mr Fisher explained the situation Gary Adshead on 6PR Mornings.