Exhibit 99.1


                           Explanation of Responses:

1.   On June 3, 2009, Monarch Capital Master Partners LP, a Cayman Islands
     limited partnership ("Capital Master Partners"), purchased 12,000 shares of
     Protection One, Inc. common stock (the "Common Stock").

2.   Monarch Alternative Capital LP, a Delaware limited partnership (the
     "Investment Manager") (f/k/a QDRA LLC and Quadrangle Debt Recovery Advisors
     LP), is the investment manager with respect to the Master Funds (as defined
     below) and may be deemed to have beneficial ownership over the securities
     held by the Master Funds and their respective feeder funds. The Investment
     Manager disclaims beneficial ownership of the securities included in this
     report and this report shall not be deemed an admission that the Investment
     Manager is the beneficial owner of such securities for purposes of Section
     16 or for any other purpose, except to the extent of such person's
     pecuniary interest therein.

3.   Two affiliates of Capital Master Partners, Monarch Debt Recovery Master
     Fund Ltd, a Cayman Islands exempted company ("Debt Recovery Master Fund"),
     and Monarch Opportunities Master Fund Ltd, a Cayman Islands exempted
     company ("Opportunities Master Fund", and together with Debt Recovery
     Master Fund and Capital Master Partners, the "Master Funds"), already own
     5,533,071 and 368,871 shares of Common Stock, respectively.

4.   On June 4, 2009, Capital Master Partners purchased 3,790 shares of Common
     Stock.