An Eastern district councilor and a man have pleaded not guilty to a count of assaulting a police officer at the Eastern Magistrates' Courts today.

Jocelyn Chau Hui-yan , who represents the City Garden constituency, 23, and student Lao Chak-kin, 23, are accused of assaulting a police officer outside the Kiu Kwan Mansion on 395 King's Road in North Point on August 11 last year.

A two-day trial will begin on August 11. The prosecution will summon five police officers and present six video clips.