A 50-year-old Australian woman has been arrested by Queensland Police following a "complex investigation" into needles being found in strawberries in September.

After the discovery of punnets of strawberries containing needles, Queensland authorities notified the public of the safety risk on September 12

The Queensland Police co-ordinated a national investigative response with multiple government, law enforcement and intelligence agencies.

A police taskforce was established with officers from the State Crime Command co-ordinating the investigation together with detectives in a number of police districts in Queensland.