Television spin offs

It's been just over a year since I posted on here! And basically, this is because it is too many words to put out there on facebook!

I was thinking about NCIS LA and this is basically my train of thought (backwards):

First there was JAG (Judge Advocate General) about Navy Lawyers. Lots of courtroom with some investigation and personal issues thrown in.

Then we had Law and Order, lots of cases pulled from the headlines and tried in a NY courtroom. Followed by L&O, Criminal Intent (lots of thinking and Sherlock Holmes type leaps) and L&O, SVU (rape, human trafficking, crimes against children, etc).

Monk was sort of an everyman's CI, Psyche, and other 'investigative shows' followed.

Then there was CSI. Not only did we get crime and cops, but we got to see inside the bodies. We went into the lab and learned what a criminologist and what forensics are. Then we had spin offs located in Miami and New York -- both still leaning heavily on forensics as well as police work. Bones took it beyond the 'fleshy' to what bones can do for us, but the same interest in forensics and personal relationships.

Now to NCIS. NCIS was a spin off of JAG, but on the investigative side. We still have crime scene investigation and police work, but heavy on the forensics. We spend as much time in autopsy and Abby's lab as we do in the field or the office.

So with this back ground, comes my perplexity:
I have just recently started watching NCIS-LA and am not sure that I like it. There is no forensics -- the computer research is kind of cool -- and very little of the now standard police work. They just seem to move from crisis to crisis and don't make very many arrests because they kill all the suspects! Each episode seems to involve a shootout with a high body count.

So the perplexity continues:
Is this just the next wave of this type of show? or does it have to do with the actually crime climate in LA? Writing this, I realized that (without the intrigue and plots and subplots), NCIS LA is more like The Shield than it is the original NCIS.

Are there others who have sensed this? and what is your take on it?