Police brutality
Simmonds and Ross are both violent towards Kenny, and they eventually kill him. There is an attitude of when this brutality occurs, since Rob, Fiona and Kate (are all there when Simmonds is attacking Kenny, and none of them try to stop the violence.
Police corruption
Simmonds is a corrupt policeman in every way, and after Ross’s first day on the job, Simmonds has already corrupted Ross. When Kenny dies from the bashing he got from the police, it is Ross who suggests that they make it look like suicide, and that Kenny shot his own head off. This shows how the corruption grows in Ross.
Domestic violence
Williamsons show the viewer the attitudes that people have considering domestic violence and its effects on women. The point of the occurrence of this in the play is showing that although domestic violence is bad and not accepted in society, it is still occurring, and nothing is being done to stop it from happening.