Conversation so far:
What was one of the new expenses issues?
The Sunday Times revealed that Dorries was facing the first complaint about an MP's expenses claim of the new parliament.
What was the complaint?
The newspaper reported that she had claimed around PS10,000 for an annual report in 2007 on her performance as an MP.
What happened as a result of this?
Dorries insisted that she had indeed published the report, placing a photograph of it on her blog.
Were there any other complaints made?
On 13 January 2011, it was announced by the Daily Mirror that police were investigating Dorries concerning her expenses.

Question: What about her expenses were the police investigating?
Self-contained rewrite: What about Nadine Dorries' expenses were the police investigating in 2011?