In-house information provided Wednesday by a bankrupt construction firm linked to the building-code violation scandal indicates disgraced architect Hidetsugu Aneha may have given false testimony to a Lower House committee in December over his involvement in the fraud.

Data from Kimura Construction Co., made available to Kyodo News, show that Aneha, 48, had not been ordered by the contractor to provide structural data for condominium complexes or hotels before 1998, the period when the now-former architect claims to have started faking quake resistance data.

The revelation conflicts with Aneha's testimony that he began falsifying quake-resistance data for buildings in 1998 out of fear of losing revenue because 90 percent of his business was with Kimura Construction at that time.