Firefighters have been called out 17 times in the last two years to tackle blazes at a derelict factory in Aberdeen.
Figures from the Scottish Fire and Rescue Service also showed that crews have spent nearly 90 hours at Broadford Works.
A total of 50 staff dedicated more than 42 hours of time at the Maberly Road site on May 23 this year.
A Dangerous Building Notice was served on the site owner Ian Suttie – whose firm First Construction has permission for 518 homes – on June 2.
Aberdeen City Council said 24 hour security patrols have now been put in place and the tycoon has until June 29 to install other measures such as blocking open lift shafts and erecting warning signs.
But north-east Labour MSP Lewis Macdonald questioned how secure the site was because people were seen climbing on the roof at the weekend.
“Figures I obtained from the Scottish Fire and Rescue Service show that firefighters have spent nearly 90 hours dealing with incidents at Broadford Works since March 2014,” he said.
“That is 90 hours of expensive deployment paid for by the public purse, 90 hours when firefighters are unable to attend other incidents, and 90 hours when they are running all the risks associated with fighting fires in poorly maintained and hazardous buildings.
“Aberdeen City Council must ensure that the dangerous building notice is fully enforced.”
Mr Macdonald said firefighters should not have to risk their lives unnecessarily because the site was not being kept secure.
Responding to the MSP’s remarks, city council planning development management committee convener Ramsay Milne said: “We welcome his support and I’m pleased the 24-hour security cover is now in place.
“Should the other measures not be in place by the end of the month, our officers will take appropriate action.”
No-one from the fire service was available for comment.