According to the Road Transport Act, what action can a police officer take regarding a registrable vehicle?

A police officer has the authority to inspect a registrable vehicle for defects under the Road Transport Act. This action is important as it ensures that vehicles on the road comply with safety and legal standards, thereby protecting both the driver and other road users. Inspections can lead to the identification of mechanical issues or other irregularities that could pose a risk, thus maintaining the overall safety and integrity of the road transport system.

In contrast, other options do not accurately reflect the powers granted to police officers under the Act. Destroying a vehicle or impounding it without cause would not align with the legal framework, which requires justifiable reasoning for such actions. Additionally, the registration of a vehicle is not a function carried out by police officers but rather falls under the purview of an appropriate licensing authority.