The Crown has withdrawn two of the criminal charges faced by a Toronto shopkeeper who tied up and detained a man who stole from his store.

Charges of kidnapping and carrying a concealed weapon were withdrawn against Wang (David) Chen in a Toronto court this morning.

The 35-year old will be tried June 21-23 on the remaining charges of forcible confinement and assault.

His lawyer, Peter Lindsay, says he will make a constitutional argument based on the validity of a citizen's arrest, adding he feels Chen should never have been charged in the first place.

Chen says he's disappointed because he was hoping all of the charges would be dropped today.

He was charged in May after making a citizen's arrest when a man stole $60 worth of flowers from his shop.