Two vegan activists have been charged after allegedly gaining entry into a piggery near Pinjarra.
A 25-year-old man was arrested at a Perth home on Tuesday after a video was live streamed to Facebook on Sunday night, showing the accused and a woman inside the farm in Blythewood.
On Wednesday morning it was revealed a 24-year-old woman had also been charged with trespass after the incident.
The pair moved around undetected for at least an hour, videoing sows and their piglets in crates, claiming they were being kept in cruel conditions.
The man has been charged with two counts of trespass in relation to the Blythewood incident and another incident at a farm in Mundijong on February 6, and one count of possessing a controlled weapon.
The woman has been charged with one count of trespass in relation to the Blythewood incident.
The pair will appear at Mandurah Magistrates Court on March 22.
Police Regional Commander Allan Adams said they will be coming down on any activists who break the law.
"There is a line in the sand when people engage in protest activity," Mr Adams said.
"When they don't abide by those rules the police will thoroughly investigate and respond."
City of Kwinana proposes 4.5 per cent rate rise
Recreational boat fishers offered $50 rebate for fishing gear at participating tackle shops
Waikiki teen among the best CrossFit athletes in the world
Mandurah's Kerrie Overell crowned WA Volunteer of the Year
Wellard home destroyed by fire
Woman fined $7k after catching 134 undersize crabs in Coodanup
Mandurah mayor Amber Kearns 'disappointed' in councillor Peter Rogers' decision to resign
Speed limit dropped to 70km/h on stretch of Mandurah Road in Secret Harbour
WA Police officer tragically dies in hospital days after Hopeland crash