The whole DOLS thing can be a bit double edged.
Yes, there is a backlog of applications. However, in an emergency situation, the care home can rush it through. What this also therefore means is, 'we can now stop relatives taking their mother/whoever out of the home for the day or for any reason at all. We have control over the situation'. Now, this doesn't seem to be the case with you, but if you've been smeared by a care home, and social services are in on it, you could find yourself on the wrong end of a DOLS.
Generally, the care home is obliged to inform the relatives about this before they apply for DOLS, and take you thru it, but in an 'emergency' situ, they don't have to, though they are obliged to tell you after the fact, when it is a fait accompli, a done deal.
A care home can fit you up by reporting you to social services. Your Mum will be put on Safeguarding, and that is the pretext for an emergency DOLS by that home or the next one without your consent or any consultation.
But why would social services do that? Ah, how naive you are. I envy you.