Thailand's crusading top detective - a man dubbed the 'Eliot Ness of Bangkok' - is being accused of political interference after investigating opposition figures. The famously incorruptible Criminal Investigation Bureau chief, Seri Temiyajev, is no stranger to controversy after taking on some of the country's most feared gangsters - now he faces claims he is a hatchet-man for the ruling Democrats. Opposition accusations are mounting after the charging on Monday of a spokesman for General Chavalit Yongchaiyudh's New Aspiration Party. Premsak Piayura faces embezzlement charges following allegations he accepted a one million baht (HK$210,000) bribe to promote a senior police officer during his disgraced party's 11-month rule. A smiling Premsak surrendered to police but denied the allegations and was released on bail. Commissioner Seri has warned 'shocking' evidence would soon be revealed and has vowed to continue investigations into party members accused of car smuggling. 'He is making everyone all too scared to speak out against him,' one senior party official said. 'This is just not fair . . . he is a very dangerous man now he has some power.' Angry opposition figures point to the apparent intensification of investigations following a three-day censure debate against Prime Minister Chuan Leekpai. As the debate ended, police raided the home of a New Aspiration MP, seizing a four-wheel-drive vehicle on suspicion it had been smuggled from Malaysia.