It seems like you might be referring to "gorget patches" in the context of law enforcement. Gorget patches are typically pieces of fabric worn on the collars of certain uniforms to denote rank or other identifying information. In some police forces, gorget patches may be used to display important information about an officer, such as their rank, division, or specializations.

However, it's worth noting that the specific use and design of gorget patches can vary significantly between different police departments, agencies, and countries. If you're interested in a particular department or agency's use of gorget patches, I would recommend looking up their official policies or guidelines for uniform and insignia.

Keep in mind that my knowledge is based on information available up until September 2021, and I do not have the ability to provide real-time or the most up-to-date information. If there have been any significant changes or developments regarding police gorget patches after that date, I would not be aware of them.