Factual error: There is absolutely no way a rookie patrolman could become a detective overnight. Total fiction.
Factual error: Megan Turner asks if there are any other people named "Megan Turner" in New York when she is being interrogated about the bullet on her name and one of the policeman says that they have found only other one Megan Turner in New York. This is beyond laughable. There would be multiple people who are named "Megan Turner" in a city like New York.