The complainant submitted a request to the London Borough of Brent (the Council) seeking information about its investigation into a number of properties he had previously raised concerns about. The Council provided some information in response to the complainant but sought to withhold further correspondence on the basis of sections 30(1)(a) and (b) (investigations), 40(2) (personal data) and 41(1) (information provided in confidence). The Commissioner’s decision is that the Council breached section 1(1)(a) by failing to clearly confirm to the complainant whether it held information falling within the individual parts of his request. However, the Commissioner is satisfied that the information which has been withheld is exempt from disclosure on the basis of sections 30(1)(a) and (b).