Police spies have infiltrated homes – and hearts. Now, they face a public inquiry. But why did they dupe women into relationships in the first place? Who sanctioned it? And will all the women and children involved finally receive an apology? Read Cara’s notebook: www.telegraph.co.uk/bedoflies | For 30 days’ free access to The Telegraph: www.telegraph.co.uk/liespodcast | Get in touch: [email protected] and on Twitter @cjmcgoogan |