Final answer:
You are allowed to turn left on a red light when turning from a one-way street onto another one-way street, when directed by a traffic officer or device, and in emergencies with caution, though the latter is not legally sanctioned but might be defended in extenuating circumstances.
Step-by-step explanation:
In certain situations, it is permissible to turn left on a red light. Generally, these conditions are:
- Turning left from a one-way street onto another one-way street.
- When directed by an officer or traffic device indicating it is safe to do so.
- During emergencies where not turning could result in greater harm, though this situation should be approached with extreme caution and is not a legal exception but may be used as a defense in extenuating circumstances. For example, if there is a medical emergency in the car like a pregnant woman about to give birth.
It's important to note that these rules can vary by jurisdiction, and it's crucial to be familiar with your local traffic laws.