You found a clue here. The police had 29 chances to bust this guy and they blew it 29 times. This is not too surprising when you realize that busting a poor drug dealer COSTS the government about $50,000 to put him in prison and about $25,000 per year to keep him there. No profit in that.
Are we really surprised that they opted to take his mothers home rather than put him away. Much more profit in that.
The Police are there to protect and to serve.
The Drug War is all about giving more power to government, more easdropping, more money to police, lawyers, judges, prisons, and the mafia.
The Drug War makes a very cheap commodity like weeds and flowers, very profitable, and gives incentives hook people onto its use, thus the new profession of "pusher" was invented as soon as drugs were made illegal, and profitable. There were no pushers at all in this country until the early 1900's.
The stupid people that still support the impossible drug war are being duped, ignorant, and cannot see that drug use has not lessened since it was made illegal, and they cannot understand why they have made no progress at all in 80 years.
The Drug war people are unfortunately never held accountable for all of the taxpayers money they have wasted over the years with absolutely not one single example of success. I only wish that those that support the War on Drugs were made to pay for it, and leave the rest of us alone, reimburse us for the taxes we already paid for it, and finance it on your own.
There is no light at the end of the Drug War tunnel.