Our last session was rather quiet but  no less interesting.

The Knight of the Cross (me),  Ectomancer Cop  and Apprentice Wizard with confidence issues went to go find out why Bounty hunters where offering an obscene amount  of money to get the Emissary of Winter (Who's a very low refresh Sidhe) Pc and the NPC/minion Spirit of intellect in the group.
 This is while there's downtime in  the investigation on discovering who exactly  stabbed  the mission control NPC with a cursed Claymore, so of course they where on a time limit.

The cop failed at  looking threatening, The knight finally got good use of the  4 Rapport I gave her back  when she was just a pure mortal and the  Apprentice's long silence almost had the hunters  walk off before telling us the information we needed.
Some quick words later, The bounty hunters  explain  that  the Spirit and the Sidhe managed to cause a Jail break and the Ectomancer Cop told them  that they hung around  at the address of the old base of operations which is no longer in use due to being trashed due to the events of the last chapter.

Naturally this jail Break was in the Never Never, The prisoner was a monster even Fae decided to imprison. Ecto cop is furious.
The spirit (cursed into the body of a puppy after he and the wizard PC pissed off winter too many times..)
My Knight swore to protect  the Spirit as it has been helping her learn about the Real world and er new duties. (Only been aware  of the  supernatural for three months and  just got her sword the near end of the last chapter) and naturally of course had a bargin to complete with  the Side in order to protect a child.

Naturally the  Knight sujjested they find the monster themselves,  the Cop is giving the Side and spirit 24 hours to spill or he'll turn them in.

Then  the session ends on a tense note after both Knight and cop explain their promises.

/steps out of  the lurking clouds

There's also the fact  that killing that many mortals in one single moment. Would bring in either the warden's if your unlucky, Or possibly the Blackstaff and or Gatekeeper if your incredibly  unlucky. Wizards can kill allot of people sure, but most of them don't because they like having their heads attached to their shoulders. Death  by Warden sword would be very unpleasant would it not?

Killing's not necessary of course, but in  that example, would there be time for less leathal means to bring allot of cops down and not break any laws of the magic kind?

I myself find myself on the opinion that a well done  plot device, one that is a natural cause of events or  so well done you can't even tell it's a plot device at first glance, are  incredibly useful of making a fun story and session. Same for No-win Situations, it's a good way to show realism when done well.

Of course a badly done plot device can simply be well boring and the GM trying to rail road. A Badly done no-win Situation is simply cheap, annoying and a quick way to make a Session  crash and burn.