When a cop in seat-index 0 is part of a pursuit it can be freed by game-engine (why?) this Freed cop attacks Player, and may shoot at Player after entering combat with Player.
This behaviour is contraindicative to expected fellow cop-behaviour, where the Cop in seat-index 0 also is removed from current chase (Mandatory).
The question is why default-game-engine at all frees a Ped that is inside Player.Character.Current.Vehicle, and of-cause why a defined Cop starts fighting.against  (entered combat) Player.Character at all.
There seem to be a definition of 'far'cop that influences the freeing event
The complete sequence:

The yellow events are the strange ones. The orange are the hostile events against Player.
I am tagging you @LMS because of the possible bug-nature.

Interesting, so you have a cop in your vehicle as a passenger and it gets freed during a chase and then attacks you? How does it attack you? And where does the cop come from (i.e., do you spawn it, if so how?).

1 hour ago, LMS said:

Interesting,

Quote

you have a cop in your vehicle as a passenger and it gets freed during a chase and then attacks you

Correct.

?

Quote

How does it attack you?

The Ped-Cop leaves the car, (also in high speed)
It will then pull its weapon and aim at Player. If Player drives away it will sometimes shoot directly on the police-car/ Player.


 

Quote

And where does the cop come from

The cop is created inside the Police-car, as a Partner.
Code used:

Spoiler

					Ped partner = new Ped(
                                        sex,
                                        vec3, 180
                                        );
									partner.Inventory.GiveNewWeapon(WeaponHash.CombatPistol, -1, true);
                                    partner.Tasks.Clear();
                                    partner.BlockPermanentEvents = true;
                                    Functions.SetPedAsCop(partner);
                                    Functions.SetPedCantBeArrestedByPlayer(partner, true);
                                    Functions.SetPedCanBePulledOver(partner, false);
                                    partner.RelationshipGroup = Game.LocalPlayer.Character.RelationshipGroup = "COP";
                                    Game.SetRelationshipBetweenRelationshipGroups("COP", "COP", Relationship.Companion);
                                    if (EmergencyVehicle) partner.WarpIntoVehicle(EmergencyVehicle, 0);                  
                                    if (partner.RelationshipGroup != "COP")
                                    {
                                        partner.RelationshipGroup = "COP";  
                                    }
                                    partner.Tasks.FightAgainstClosestHatedTarget(500, -1);
                                }

 

( Sorry for the formatting, The spoiler-block seems to dislike VS
sex is only a switch between having a male or a female partner.
EmegencyVehicle is Players.Current-vehicle. )

The glitch will only happen if a callout is active, and only when the suspect is close enough to show its blip.
I think the definition of far-cop could be the glitch
A Cop 'next' to Player should not be defined as far ao freed as it results in the Cop being removed from chase as part of Mandatory gameplay.