[Emmet_]

Timestamps.

pawn Код:

new g_FiredTime[MAX_PLAYERS];

pawn Код:

public OnPlayerWeaponShot(playerid, weaponid, hittype, hitid, Float:fX, Float:fY, Float:fZ)
{
    if ((gettime() - g_FiredTime[playerid]) > 60)
    {
        // alert cops

        g_FiredTime[playerid] = gettime();
    }
    return 1;
}

Make sure you clear the variable upon connection:

pawn Код:

public OnPlayerConnect(playerid)
{
    g_FiredTime[playerid] = 0;
}

This will only send the warning every 60 seconds a player is shooting. Change "60" to your time.