Vancouver Island Major Crimes Unit has taken over an investigation into an incident in the 39-hundred-block of Carey Road over the weekend.
Saanich police say a 41 year old man suffered life-threatening injuries after being attacked about 3:15 Saturday afternoon.
As part of the investigation officers cordoned off an area around a residence on Carey Rd where neighbours report seeing paramedics performing CPR on a man lying on the ground.
Police cordoned off a large area around the home, and were also led to a home on Granderson Rd in Langford.
Officers arrested a suspect shortly afterwards, and say it appears those involved were known to one another.
The #30 bus would have been travelling the route at the time of the incident, and police would like to talk to any passengers who witnessed anything.