Final answer:
License validity varies by type and jurisdiction, but the context provided suggests that police could issue one-year licenses for handguns. It is equally important to follow safety regulations such as keeping firearms unloaded, disassembled, or secured with a safety device unless they're in use.
Step-by-step explanation:
The duration a regular license is valid can vary depending on the jurisdiction and the type of license in question. However, in reference to handgun licenses mentioned within your question, some police could issue one-year licenses for handguns. It is crucial to note that regulations often change, and some areas may have different rules regarding the validity period of such licenses.
Furthermore, when it comes to firearm safety, it's required in certain codes that owners of lawfully registered firearms keep them unloaded and disassembled, or secured with a trigger lock or similar device. These safety measures are mandatory unless the firearms are situated in a place of business, or are being used for legal recreational activities, ensuring responsible ownership and preventing unauthorized use.