[jknz]

To avoid confrontation in the 48h window, a good squatter strategy is to target summer or weekend houses that have typically other weekend houses next to it so that neighbours aren't there and won't alert the owner.

Then squatters move in in two steps. First they do a small break in and leave, observing whether someone notices and fixes the first break in. If the first break in goes unnoticed, it is probably safe to move in, change the locks and squat there permanently as nobody will confront them in the 48h window.