http://www.bbc.co.uk/newsbeat/article/33840680/spanish-resort-fines-beach-hoggers-who-leave-towels-out-to-reserve-best-spots
proper order, they should of done it year's ago, as we all know the german holiday maker's started this then the brit's took it over with a vengence, i've seen kid's being sent down as early as 7 in the morning to put towel's on lounger's, i remember a number of year's ago in majorca the pool attendant used to go around first thing in the morning and take off all the towel's and threw them in a basket next to the pool, well done to him.
Don't know if they still do it, it's a long time since I was in Jandia, but Germans used to put little plaques in the bunkers with the dates, that they were staying there.
We'd just chuck them out. When they came, we'd ask for their Residencia, obviously they didn't have any. On showing ours, we'd say, go and call the Police then. They soon left.