Conn. Practice Book § 42-44

Upon motion of the prosecuting authority, the

judicial authority may declare a mistrial if there

occurs during the trial, either inside or outside the

courtroom, misconduct by the defendant, coun -

sel for the defendant, or someone acting at the

request of the defendant or such counsel, which

results in substantial and irreparable prejudice to

the prosecuting authority’s case. If there are two

or more defendants, the mistrial shall not be

declared as to a defendant if neither that defendant, nor counsel for that defendant, nor a person

acting at the request of that defendant or counsel

for that defendant participated in the misconduct,

or if the prosecuting authority’s case is not sub -

stantially and irreparably prejudiced as to that

defendant.