Gosnells Medical Centre on Albany Highway has been hit by its second arson attack in just eight days.
On October 6 the alleged attackers threw kerosene at the front door of the business and on October 14 two bottles of the lamp oil were again thrown at the staff room and kitchen.
Arson Squad Detective Sergeant Kevin Wisbey said forensic evidence has since been collected and was currently being processed.
“We have some forensic opportunities, the offenders were stupid enough to leave materials behind,” he said.
“Arson is criminal damage by fire and it is a serious matter, it can end up in the supreme court and the maximum penalty for this type of offence can be life imprisonment.
“It is only good fortune that the whole building didn’t catch fire.”
Centre manager Razzak Abdulrazzak said he was perplexed by the attacks.
“I have absolutely no idea why they are doing it, I can only speculate – it is not an attempt to steal money or drugs, there is no sign of forced entry,” he said.
“We have had break-ins before but this person is trying to cause as much damage as possible.
“This most recent attack…the person deliberately made molotov cocktails and smashed one on the building but the other one didn’t break.
“It seems to me it is pretty targeted.”
Mr Abdulrazzak said it was disturbing that someone would attack a place that treats people for medical conditions
“We usually leave forms and referrals next to the windows and there is a book case full of medical books and if they were able to catch fire it would have been catastrophic,” he said.
“If the building caught fire it could have been very serious and set alight other business premises in the area.
“We want people to be vigilant in the area and report any suspicious activity to police.”
Anyone with information was asked to call Crime Stoppers on 1800 333 000 or make a report online at Crimestoppers.com.au