wallboards were hinged so they could be opened to increase airflow. Fanlights, sash windows and louvres assisted with ventilation. In 1934 a ventilation grille was installed behind the Judge's Bench and casement windows installed in the Jury's Room. Although electric fans were first installed in 1938, and by 1990 there were 18 fans in the building, these upgrades have not affected the material fabric of the system. While it is known that similar ventilation techniques were incorporated into other public buildings such as schools and post offices or other court houses during this period and earlier, the system within the second Innisfail court house now at Yorkeys Knob is rare in its survival in North Queensland. In all, the building has seven ceiling ventilation spaces attached to the ducting system and roof ventilator via metal hoods in the ceiling above them. This configuration is preserved intact and remains in the ceiling space. Between 1920 and 1930 the total population of the Johnstone Shire ballooned from 5,549 to 18,088 people and the number of recorded dwellings rose from 700 to 3,130. The sugar districts of the north Queensland coast experienced a boom during the 1930s and it was considered necessary to expand the court house facilities in Innisfail to cope with the increasing amounts of official and legal business. In 1937 plans were drawn up for a new 2-storey brick court house, which was completed in 1939. Timber and iron buildings are well adapted for removal and modification for re-use, and in north Queensland this has been a common response to changing economic conditions in settlements, such as mining towns. Bell considers that this was probably one of the influences on the design of timber buildings, and that it was not unusual for relocated buildings to undergo modification on re- erection, for stylistic or functional reasons, rather than be reconstructed to original forms. The timber court house was moved to an excavated site at 8 Edith Street in 1938, placed on concrete stumps and adapted for use as the Innisfail Police Station, which opened in 1942. The front offices became a Day Room, CIB office, storeroom, Sub-Inspector's office and public enquiry rooms. One corner of the verandah was enclosed for a Senior Sergeant's office. The courtroom was divided into single men's accommodation, with 6 bedrooms and a recreation room. The front double stairway was lengthened and one set of steps was