[jumpy]

True enough, but to get around the small matter of these agreements, they tend to put such displaced peoples in camps in the middle of nowhere instead. Such camps have 'non-peoples' in them, where in effect they belong to no-one. Not much different to deporting someone back to a place they claim asylum from in terms of safety and law, agreements or no.
perhaps I'm nit-picking here, but the arabs (for example) are great at holding their hands up and saying 'ooh, you know what? we don't want you to be our problem, tata'.
The result is that we have many incidents like the one in the article - some other countries trash, having little care for our rules (we already have enough of our own citizens who behave this way) cluttering up the place and taking up time and money in the courts to no pleasant outcome.
But I get where your at with it not always being so simple. Were it so he'd never have been allowed to remain within our boarders to start with and I'd fully concur with that.