Erik,
In regard to the issue of uniforms vs. plain clothes, as a retired police officer, let me tell you that staying in uniform is the way to be.
This is because if the police are needed at your site, especially if a serious crime is being reported, the responding units will not know you from any bad guys, and until they do, you may very well be considered a bad guy until they know better.
This will be unpleasant for you, and will cause the police to take away from their efforts to catch and deal with the bad guys.
In regard to the issue of uniforms vs. plain clothes, as a retired police officer, let me tell you that staying in uniform is the way to be.
This is because if the police are needed at your site, especially if a serious crime is being reported, the responding units will not know you from any bad guys, and until they do, you may very well be considered a bad guy until they know better.
This will be unpleasant for you, and will cause the police to take away from their efforts to catch and deal with the bad guys.
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