Hypnotized Soldiers Lead to Detention of Suspects

Four suspects were detained on Friday in connection with the mugging of two ROK Army soldiers with the help of descriptions given to police using hypnosis:

After a tip, police questioned four men Friday night in connection with an incident in which two soldiers were stripped of their rifles and ammunition on Wednesday.
The military released an artist’s rendition yesterday of one of the three assailants. One of the men who is being questioned is said to resemble the sketch.

Police said that man was discharged from the military last year, and soldiers who knew him suggested the man to police. The men were detained in Donghae, Gangwon province. Police are offering a maximum 10 million won ($9,000) reward for information on the assailants. The soldiers were hypnotized and were able to give a description of one of the men but not the other two, police said.

I would think a lawyer would have a field day with this if any arrests are made. Anyone know if descriptions from using hypnosis can be used to make arrests?