There is no way that this government or any other will effectively tackle this.
They may huff and puff and tinker round the edges; they may threaten all manner of measures which they believe a gullible public will accept as happening just because they said it will. But at the end of the day both forced marriages and the much more vile FGM will continue both here and to victims taken from the UK to be dealt with abroad. As naomi mentions, all governments are absolutely petrified of introducing effective measures to prevent these occurrences, they will not introduce effective and deterrent sentencing of those found guilty and they will not sanction the removal from the UK (or prevention of re-entry) of those who carry on with such medieval practices.
I know personally of two cases of forced marriages (one involving a fifteen year old female, the other a twenty year old male). Both were taken “on holiday”. Both returned with a spouse, neither of whom could speak a word of English, who had never set foot in the UK before and would contribute absolutely nothing to this country. Both “wives” were pregnant within a few weeks of arrival. They now have seven children between them. The male disappeared entirely about a year ago and he confided in me before then that he was extremely unhappy, having had no adolescence to speak of as the plan was always for him to marry as soon as circumstances permitted - something he had been informed of from the age of about eight.
This behaviour is abhorrent to the vast majority of people in the UK but because it is acceptable elsewhere we must, if not embrace it, not fret too much about it for fear of upsetting the apple cart. Yes, we are seeing the odd one or two cases where abuse has been recognised and dealt with. But the problem is so widespread that it is fanciful in the extreme to imagine that it will ever be reduced at all, let alone eliminated. But such are the joys of living in a multicultural society - huge numbers of youngsters having their partners selected for them and their futures confined.