A patch of what appears to be blood has stained the concrete footpath below a balcony from which a partygoer is believed to have fallen on Friday night.
A fire engine was called into action in Mt Eden, Auckland yesterday afternoon to boost a police investigation into the incident.
An officer was hoisted up to the balcony of an apartment above shops on the corner of Auckland's busy Mt Eden Rd and Esplanade Rd, so he could examine it for fingerprints.
The dusting at the building was above where a man was found injured on Friday night.
A police spokeswoman said they were investigating after the man was found on the footpath "with a number of injuries, mostly broken bones".