It's the letter D. And its symbolic of a Detective.
DB which stands for "detective bureau"
Mac Taylor, the character on CSI: NY, is often seen wearing an American flag pin on his lapel as a nod to his military background and patriotism.
Gary Sinise who plays Mac Taylor wears a small pin on his left lapel. The pin is a small circle with the letters DB which stands for "Detective Bureau". The small pins are given out by the Chief of Detectives. and only 1 out of every 1000 people get them because you have to rise through the ranks.
Mac Taylor, portrayed by Gary Sinise on CSI: NY, is often seen wearing black dress shoes or black boots as part of his detective attire. These shoes are appropriate for his role as a New York City police detective and are part of his professional wardrobe.
MAC
Gary Sinise
Gary sinise
McKenna "Mac" Llewellyn Taylor is the full name of a fictional television character. This character features on the television show "CSI:NY" as a detective.
Mac Taylor: Gary Sinise
No will is the only white guy
The surname 'Taylor' is spelled Mac an Tàilleir in Scottish Gaelic, and translates as 'son of the tailor'.
never butt head.