What is Enough to Change Custody

[fkm3]

My question involves a child custody case from the State of: Tennessee, My son, a game warden was supposed to meet his ex-spouse in a public place to get his son last night at 6pm.. However 2 hours later, she still had not shown up. She was working and had her boy-friend to take my grand-son to meet his dad, however he was caught driving "DUI" after a concerned motorist reported a car driving on the wrong side of the road and wreckless driving north of Knoxville. He man was charged with "DUI", there were pills retrieved-Methodone, and others. The car was impounded...The police called my son, to come meet them at the roadside to get "his biological son". My grand-son was un-hurt, but very scared.
Question..Can my son petition the courts in Tennessee due to this incident, and also word of mouth from various local law authorities stating that this perpetrator is a known-drug supplier?...We are worried terribly about the home-life of my 7 year old grandson...Please advise..Thanks!

[Dogmatique]

Have child services been involved?

If not, why not?

Has the boyfriend been convicted of anything (pertaining to this incident)?

[PQN]

He should contact an attorney immediately about filing an emergency petition. A local attorney would know the climate of the local courts and CPS.

Dogmatique -- unless their courts are much faster than our local courts, since the incident happened roughly 24 hours ago, I doubt there has been a conviction yet.