Prof Emeritus Datuk Dr Zainal Kling walked out of Bukit Aman police headquarters around 1pm after being questioned by police for about two hours on Friday. <br /><br />It is also learned that University Malaya Malay Excellence Centre Director Prof Dr Hashim Ismail was at Bukit Aman to record his statement. <br /><br />According to their lawyer, Muhamad Hisham Marzuki, both Zainal and Hashim cooperated with police in recording their statements in accordance with section 112 of the Criminal Procedure Code. <br /><br />Both of them were called in by Bukit Aman after Prof Dr Zainal delivered a fiery speech at the congress where he reportedly reminded Malaysia's ethnic minorities of the so-called "social contract", which he claimed allowed them to gain citizenship.