The Australian Securities and Investments Commission placed an interim stop order on development financier Australian Capital Reserve, the Financial Review reported.The newspaper reported that Australian Capital Reserve was one of several financiers promoting high-yield debentures and subject to increased scrutiny by ASIC over the details published in prospectuses.The AFR said ASIC placed an interim stop order on ACR on Friday, following lodgement of accounts by Castle Investment (which manages ACR) four days earlier.Australian Capital Reserve has since removed all but its basic contact details from the company's public website. The newspaper quotes a director of Castle Investment, Murray Lapham, as saying the group lodged a draft supplementary prospectus, including new accounts, with ASIC.Two weekends ago the Australian newspaper questioned the valuations and merits of the prospectus issued by Australian Capital Reserve. The newspaper said that ACR reported "a pattern of sharp valuation increases, and, in some cases, sales to related parties" in connection with nine development projects financed by ACR.Before being subject to the stop order by ASIC, ACR promised investment returns of eight per cent for one year, rising to 8.95 per cent for investment terms of up to 10 years.