We are all desirous of knowing the source of fires, especially where it effects us personally or professionally. There was an article in the Houston Chronicle regarding an execution of probably an innocent man. It brought back a memory of a case that was quite similar. A gent in AZ was convicted of killing his two daughters by arson. The key testimony was by a “Fire Marshall”, who I knew, lied about his background and qualifications. I contacted the defense attorney and provided him with quite a bit of info. To make a long story short, re-trial, real experts, acquittal. The “Fire Marshall” was fired.
If you think false charges that your work caused a fire would never happen, just remember that juries are very sentimental if children are harmed. Don’t take shortcuts or use sub-standard materials. Even if you meet all codes, rules, and inspections you are still liable for a safe installation as courts have ruled “You are the expert”! Be carefull.