Under what condition can a police officer require a specimen of breath?

A police officer can require a specimen of breath particularly when they are dealing with a moving traffic offence. This condition is rooted in legislation that aims to ensure road safety by enabling officers to assess whether drivers are operating vehicles under the influence of alcohol.

When a police officer notices a moving traffic offence, such as erratic driving or failure to comply with traffic signals, they have a statutory duty to investigate. If there is reasonable belief that the driver may be impaired due to alcohol consumption, they can request a breath specimen to ascertain the driver's blood alcohol level. This procedure is crucial for maintaining safety on the road and for enforcing laws related to driving under the influence.

The other options, while having their own contexts in terms of legal considerations, do not satisfy the specific criteria for requiring a breath specimen. For example, being under 18 or the condition of the vehicle being parked does not inherently provide grounds for assessing intoxication in the same manner as a moving violation does. Similarly, simply suspecting intoxication requires an officer to have additional supporting factors, such as observing a traffic offence, to justify the request for evidence.