Seven people were arrested during overnight police operations as officers targeted illegal residency, grievous bodily harm and drink-driving, police said on Friday. Officers ran organised patrols in key urban areas and stopped 473 vehicles, checking 601 people travelling in them. They also inspected 27 premises, resulting in one complaint. Traffic checks produced 301 reports for road traffic offences, with five suspected traffic violations under investigation. Of the traffic complaints, 167 were for speeding, and police impounded seven vehicles. Police carried out 203 alcohol tests, which led to three complaints. One preliminary drug test was also conducted and returned a negative result. The operations formed part of ongoing efforts to prevent crime and improve road safety, police said.