From what I've been reading she was in an 'excitable' state because she thought she had lost the passports for her other children (who were in Italy). They told her that she was being taken to hospital so they could check that her unborn baby was ok but was instead she was taken to a psychiatric facility and placed in lockdown. The woman became understandably upset after being held for five weeks and started asking why she wasn't being given a release date to return to Italy, and it was at that point it was applied to the Courts to allow a c-section to be performed. The woman was told that she wasn't allowed breakfast that day and when she protested about her treatment she was heavily sedated and woke up in a different hospital and no longer pregnant. She was then deported to Italy.
Here's another case involving Essex SS. This time they tried to get a Court Order banning a father from seeking the assistance of his local MP to find out why his children had been taken from him.
Why did social services take my children away? (From Echo)
A quick google shows up lots and lots of results from sites such as mumsnet, netmums and specific forums supporting people who feel they have been wrongly targeted by SS. This is an ongoing problem that is being perpetuated by the extreme secrecy they are being allowed to operate under.