Actually I mis-read Goslows post, you are correct he stating facts so apologies to Goslow.
He was a senior police office, including firearms, and led the police force for rape and Sexual Offence Investigation/Prevention, Child Protection, Domestic Violence, Sex Offender risk reduction etc.
He now works on cases such as the Ched Evans case, carrying out investigations into potential miscarriages of justice on behalf of defence teams. Apparently, usual defence investigations only interview the "obvious" witnesses and often don't dig deeper, which results in key evidence not being uncovered. This is often because of the costs involved in carrying out such investigations.