Here's a rewritten and improved version of the provided content in English, with added details to make it more natural and engaging, and exceeding 500 characters:
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This is from Martin Nowak:
I attended the 2013 Chicago Auto Show on February 12th and had the chance to see several police and emergency vehicles on display. The F-Series truck was shown last year as well, so here's a video from the previous year showing it with its lights on: [http://www.youtube.com/watch?v=q-NUdwbr8Co](http://www.youtube.com/watch?v=q-NUdwbr8Co).
Below are some photos I took at the event featuring different law enforcement and emergency service vehicles. These images highlight the variety of vehicles used by local and state agencies for public safety.
*Martin Nowak photo*
*Martin Nowak photo*
*Martin Nowak photo*
*Martin Nowak photo*
*Martin Nowak photo*
*Martin Nowak photo*
*Martin Nowak photo*
*Martin Nowak photo*
These displays give a great insight into the equipment used by emergency services, and it’s always interesting to see how they're presented at major events like the Chicago Auto Show.
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