The family of the boy said the officer arrived at their home last month in full uniform, riding a department-issued motorcycle.
The family said during his questioning, the officer handcuffed the teen and had his hand on his gun much of the time.
"He made comments like 'you don't mess with a cop's daughter.' That's a show of authority. That's inappropriate," said Tony Boskovich, the family attorney.
"Our department has no policy prohibiting an officer from investigating a case or being involved in a case where he or she knows the involved parties or is emotionally involved with the incident," said Jose Garcia of the /*San Jose Police Department*/.
In addition to a /*San Jose*/ internal affairs investigation, the /*Santa Clara County*/ district attorney wants additional information from the police department to determine if any crimes were committed.
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