It amuses me that a SWAT team cannot deal with a dinosaur, despite unloading their weapons into it. The main character then runs up and attacks the towering predator with his knife, killing it.
If there isn't a Bad Movie Law explaining that one, there should be. Something like 'The authorities are useless, no matter what sort of training (and firepower where appropriate) they possess'. Then again, I suppose it could just be a specialized case of IITS.