Checkpoints after crossing into Mexico?

I've not been in the states since mid-2009 nor in PP. Before that, "going down", I don't remember any checkpoints after crossing into Rocky Point, other than the dreaded red light at the border. Where are these at? I've recently returned to AZ and planning a family trip next month. Thanks for the help.
 

AZSon

Guest
We came through Saturday and were stopped at one. He said, "car.... get out". After doing a quick look through he asked if we had any fish or alcohol. We said no and he said have a nice day. No problems.
 
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