They probably figure it's extremely unlikely to come up. Unless you have:
- A tenant who boycotts Israel
- And tells their landlord about it
- And the landlord wants to get rid of them
- And the landlord can't come up with a more conventional excuse
- And the tenant knows their rights and has the resources to fight
Nobody would likely challenge it.
I assume it's a search and rescue dog with a microphone. It found the hostages and they told it they had snuck out, hoping the army would be on the lookout for them, but either nobody listened to the recording or nobody gave a shit about rescuing hostages.