Prior to the decision by city officials to pull back from some police involvement at the Gathering Place, an internal guidebook to the park was sent to police officers. The guide would dictate when officers should get involved in incidents at the park, what discretion they had at their disposal, and what the Gathering Place expected them to do. But as for what’s in the book — and just how much of it is no longer applicable in the wake of the city’s “morphing advice” to Tulsa Police Department officers — they won’t say.