Every custody case I work comes to me from a parent who is genuinely worried about their child. They've seen something that concerned them, unsafe living conditions, substance use, a new partner with a troubling background, violations of the custody agreement. They need to do something, and they've realized that documentation is the only thing that actually matters in court.
Texas family courts operate under the "best interest of the child" standard. That means a judge isn't interested in which parent is angrier, which parent is more articulate, or which parent's attorney is more persuasive. They want evidence. Documented, organized, credible evidence that speaks to the child's safety, stability, and welfare.
Here's what I've learned about what actually moves judges, and what doesn't.
What Courts Want to See
Documented violations of the existing custody order. If your ex is consistently late for pickups, interfering with your scheduled time, taking the children out of the agreed geographic area, or refusing to allow phone contact, those violations need to be documented with dates, times, and evidence. A log that you maintain is a start. Video, photographs, and third-party corroboration are stronger.
Evidence of substance use around the children. Courts take this seriously, but only when it's documented. "I think they're drinking" isn't evidence. A photograph, surveillance footage, drug paraphernalia documentation, or a DUI record relevant to the custody period, those are evidence.
The home environment. If you have reason to believe your child is living in an unsafe or neglectful environment, documentation of the physical living conditions can be compelling. This requires careful investigative work. I can't trespass to obtain evidence, but I can document what's observable from public areas and coordinate with your attorney about what discovery options exist.
Exposure to harmful relationships or situations. A parent's new romantic partner with a violent criminal history. A household member with a substance abuse problem. Regular presence of unknown individuals in the home. These concerns need to be investigated and documented professionally to be usable in court.
A pattern, not an incident. One bad day doesn't change custody. Texas courts want to see that the concern you're raising is a pattern of behavior, not an isolated incident seized on in a heated moment. This is why my work in custody cases often spans multiple weeks of observation, to establish the pattern that the court needs to act.
What Courts Don't Want to See
Judges in Travis County family courts have seen every variety of custody investigation, including the ones that were weaponized rather than child-focused. Here's what undermines your case:
Evidence gathered illegally. Recordings made without consent where Texas law requires it, access to the other parent's home without permission, hacking or unauthorized access to accounts or devices, all of this is inadmissible, may expose you to criminal liability, and tells the judge something very unflattering about your judgment.
A vendetta dressed up as concern. If the evidence you're presenting is really about hurting your ex rather than protecting your child, experienced family law attorneys and judges see it immediately. My job is to document the truth, which means I'll tell you if what I found doesn't support your concern as strongly as you hoped.
Surveillance conducted by the parent personally. When you conduct your own surveillance of your ex-spouse, you create legal exposure for yourself, and anything you gather is easily attacked on authentication grounds. More importantly, it often inflames the situation in ways that hurt the child.
How to Work With a PI in a Custody Case
The most effective approach is for your family law attorney to engage me directly, keeping my work under work product protection. Your attorney and I discuss the specific concerns, develop a targeted investigation plan, and I report findings back through your attorney.
This protects the investigation from discovery, ensures the evidence is gathered in a legally defensible manner, and positions the findings for maximum effectiveness in your proceeding.
If you don't yet have a family law attorney, I can refer you to experienced attorneys throughout the Austin and Cedar Park area. Learn more about child custody investigations in Texas.
