earlier i spoke to donna shaw, a crime, justice and police commentator, but former bbc affairs correspondente incidents. the through how the police deal with these incidents.— through how the police deal with these incidents. the one thing is to find all the evidence _ these incidents. the one thing is to find all the evidence they _ these incidents. the one thing is to find all the evidence they possibly i find all the evidence they possibly can, that means keeping the crime scene secure, preserving all the evidence of what has happened, to build a picture and gather evidence in the event for space comes to trial. but is really important. the second aspect, which we aren't seeing but i am sure has been going on behind—the—scenes support six hours now, is to find out about these individual in custody, the 31—year—old suspect arrested on suspicion of murder. what do police know about him, who is he, where is he from? i am sure they have gone to his home address, raided it, looking for computers, laptops, mobile phones, search through his accounts to find out if he is linked to anybody else, d