Criminal defense is not personal injury with different keywords. The client pays up front, the phone rings at 9 p.m., and the person searching is frequently not the person you’ll represent. Almost every piece of Google Ads advice written for law firms ignores all three.
The short version: criminal defense has one enormous advantage over most legal advertising — because you charge a retainer, you know what a case is worth on the day you sign it. That makes your cost-per-case math clean in a way personal injury’s never is. Almost nobody uses it. Most defense firms optimize toward call volume, which is the one number that reliably lies to you.
Section 01Why Criminal Defense Is Its Own Animal
Most legal PPC advice is written with personal injury in mind, because PI is where the enormous budgets are. The advice transfers badly.
Contingency
Case value is unknown for months or years. Signing lag runs long. Fee depends on outcome and collection. You’re advertising against a number you won’t learn until much later.
Retainer
You quote a fee and collect it. On the day the client signs, you know what the case is worth — which means you can calculate what you can afford to have paid to acquire it, that week.
That’s a real structural advantage and it goes almost entirely unused. Most defense firms run campaigns optimized toward phone calls, which tells you nothing about whether the caller had money, had a case you take, or was in your county.
The other differences matter just as much:
- Urgency is compressed and then it stops. Someone arrested Friday night is searching Saturday morning. If they retain somebody Monday, your ads are invisible to them by Tuesday regardless of budget.
- The searcher often isn’t the client. A mother, a spouse, an employer. The defendant may be in custody without a phone.
- Case values swing enormously. A first-offense DUI and a felony trial are different businesses sharing an office.
- Volume is low relative to PI. Fewer conversions means Google’s automated bidding learns slowly, which changes how you have to run the account.
Section 02The Math You Already Have and Aren’t Using
Before deciding a budget, work out what you can afford to pay for a case. You already know the input, which most advertisers don’t.
Say your average retainer across all matters is $4,500, and you want client acquisition to stay under 20% of fee revenue. If roughly one in six qualified inquiries becomes a signed client, that gives you both numbers you need.
Target acquisition at 20% ………. $4,500 × 0.20 = $900 per signed case
Qualified inquiry → signed ……. 1 in 6
Max cost per qualified inquiry … $900 ÷ 6 = $150
Now a $95 cost per call stops being good or bad in the abstract. It’s either comfortably inside $150 or it isn’t, depending on how many of those calls were qualified.
Run this separately for your main charge types, because the answer changes a lot. A practice where felony matters carry $12,000 retainers can afford dramatically more per inquiry than the same firm’s traffic-offense work — and if you run one budget across both, the cheap traffic quietly eats the campaign.
You are not buying clicks. You are buying signed retainers at a price your practice can support. Everything else is a proxy.
Section 03Segment by Charge, Not by “Criminal Defense”
A single campaign called “Criminal Defense” averages together searches with wildly different economics and lets Google spend your budget wherever clicks are cheapest — which is almost never where the good cases are.
| Charge category | What’s distinct about it |
|---|---|
| DUI / DWI | Highest search volume, most competition, most predictable fee. Usually the volume anchor. |
| Drug charges | Fee range varies enormously between possession and distribution. Worth separating. |
| Domestic violence | Family members search heavily. Emotional context demands different ad copy entirely. |
| Felony and violent crime | Lower volume, highest value. Justifies a much higher cost per inquiry. |
| Probation violations | Urgent, specific, often overlooked by competitors. |
| Expungement / record sealing | Different intent entirely — not urgent, price-sensitive, often a separate campaign or none at all. |
You don’t need six campaigns on day one. You do need budget allocated by what a case is worth, rather than one pot spent wherever the auction is cheapest.
The searches worth buying, and the ones that aren’t
Run every search term through one question: if this person called right now, would I want the case?
dui lawyer near me criminal defense attorney [city] felony lawyer [county] public defender how much does a criminal lawyer cost free criminal lawyer
“Public defender” is the one that quietly drains defense budgets. Someone searching it has usually already decided they can’t pay for private counsel. It gets matched to your ads constantly and it belongs in your negative keyword list on day one.
Section 04Who Actually Calls Your Firm
This is the part that breaks measurement, and it’s specific to your practice area.
Nobody has searched for anything.
She clicks your ad, reads your DUI page, doesn’t call. She writes your number down. This is the click you paid for.
Different person, different device, two days later, from a number that was handwritten. This is the call you got.
No tracking software connects those events, because there is no shared identifier between them.
Three practical consequences:
- Write ads that speak to whoever is reading. A meaningful share of your traffic is a frightened family member, not the defendant. “We’ll explain what happens next” lands better with that reader than “aggressive defense.”
- Your after-hours coverage is a marketing decision. Arrests happen at night and on weekends. An unanswered 9 p.m. call is a wasted click and a client who called the next firm.
- Some attribution is unrecoverable. Only a question at intake bridges the cross-person gap. There’s more on that here, including how to measure how much you’re currently missing.
Section 05The Bidding Mistake Almost Everyone Makes
Here’s something I learned the expensive way, and it runs against advice you’ll hear from people who should know better.
When a defense campaign is losing impression share, the standard prescription is to raise your target cost per acquisition. The logic seems airtight: bid more, win more auctions, get more cases.
I tested it on a live account, moving target CPA from $184 to $500 — a very large increase. Results did not improve. Not modestly. At all.
The reason, once you see it, is obvious. Smart Bidding at the lower target was already entering the auctions it could win profitably. Raising the ceiling didn’t unlock better auctions; it just gave the system permission to pay more for the same ones. The impression share that was being lost wasn’t lost to budget. It was lost to ad rank — relevance, landing page experience, expected click-through rate.
When you’re losing impression share, check whether you’re losing it to rank or to budget before touching bids. If it’s rank, the lever is ad relevance and landing page quality, not money. Paying more to lose the same auctions is the most expensive way to feel like you’re doing something.
This matters more in criminal defense than in high-volume categories, because low conversion volume means every bidding change takes longer to evaluate. You get fewer swings. Spending one of them on a lever that doesn’t move is costly.
Section 06What Tracking Has to Do in This Practice Area
Standard setups fail here for a reason that’s mechanical, not philosophical.
Google’s Smart Bidding improves when you tell it which clicks became clients. To do that you upload signed cases back into the platform. But Google enforces a deadline: conversions uploaded with hashed personal data must arrive within 63 days of the original click, and GCLID-based uploads within 90 days.
Now put that against a defense timeline. Click in March. Bond, family discussions, finding the money. Retainer signed in late May. Past 63 days — and the case you most wanted to teach the algorithm about is the one it refuses to accept.
| Signing lag after the click | What can be uploaded |
|---|---|
| Under 63 days | Signed case with retainer value. The ideal signal. |
| 63–90 days | GCLID upload only. Enhanced conversions will reject it. |
| Over 90 days | Nothing. Invisible to bidding, permanently. |
The workaround is to stop waiting for the signature. Pick a milestone that reliably lands inside the window and predicts signing — consultation attended, or retainer agreement sent — and upload that as your optimization conversion, valued at your average retainer multiplied by the rate at which that milestone converts. You still track signed cases for your own reporting. You just stop asking the algorithm to wait three months for a lesson.
Section 07Your Intake Is Part of the Campaign
Two things at the front desk determine whether any of the above works.
Someone answers. Clio’s secret shopper research found that of 500 firms contacted, only 40% answered the phone and 48% were effectively unreachable. In a practice area where the caller will simply dial the next firm, an unanswered call is a click you bought for a competitor.
Someone logs where it came from. A fixed dropdown, not free text, filled every time. Fifteen seconds per call. Without it, the outcome data never reconnects to the ad data and the whole measurement chain stops at the phone.
Ask the source question late in the call, after rapport, not first. A frightened person opening a call with a marketing question gives you a throwaway answer.
Section 08Bar Rules and Ad Copy
Your state’s rules on lawyer communications govern your ads, and Google’s approval process does not check them for you. An ad that runs is not an ad that complies.
The general shape across most jurisdictions: no false or misleading statements, no claims creating unjustified expectations about results, and care with comparative superlatives you can’t substantiate. Past-result claims typically need disclaimers, and some states require records retention for advertising.
Rules differ meaningfully between jurisdictions and change over time. Read your state bar’s current rules on lawyer advertising before launch, and have counsel review copy that references results, awards, or experience. Nothing here is legal advice.
The practical upside: specificity outperforms superlatives anyway. “Birmingham DUI Defense — Former Prosecutor” is both more compliant and more persuasive than “Best Criminal Lawyer.” A frightened person is looking for a reason to trust you, and superlatives are what everyone claims.
Section 09When You Should Not Run Google Ads
Four situations where I’d tell a defense firm to spend the money elsewhere.
- Nobody answers after hours. Fix coverage first. Advertising into an unanswered phone is buying clicks for whoever picks up second.
- Your budget is under about $1,500 a month. Defense clicks are expensive. Below that, you won’t generate enough conversion volume for automated bidding to learn anything, and you’ll be paying management fees out of a budget that can’t produce a readable result.
- Referrals already fill your calendar. If you’re turning away work, paid search solves a problem you don’t have. Revisit when you have capacity.
- Your website doesn’t answer the basic questions. If a visitor can’t tell within seconds whether you handle their charge, in their county, and what happens when they call, fix that before buying traffic to it.
Section 10What to Ask Before Hiring Anyone
Six questions specific to this practice area. Ask them of anyone you’re considering, including me.
- How would you connect a signed retainer back to the ad that produced it, when the client called three days later from a number they wrote down? The answer should mention call tracking, intake tagging, and uploading outcomes to Google. Vagueness here is the answer.
- What’s your plan for cases that sign more than 63 days after the click? If they don’t know why 63 days matters, they haven’t built this before.
- How would you separate my felony work from my traffic work? If both live in one campaign, budget flows to cheap clicks and away from valuable cases.
- What would you do about lost impression share? If the answer is “raise bids” with no mention of checking whether the loss is to rank or budget, see section five.
- Will I own the Google Ads account? Immediate yes, or ask what happens to your history when you leave.
- What would you need from my staff? Anyone who says “nothing” isn’t planning to measure outcomes.
Section 11What It Costs
Two separate numbers, and firms conflate them constantly.
| Cost | Typical shape | Note |
|---|---|---|
| Ad spend | Paid to Google, set by you | Defense clicks commonly run into the tens of dollars, more in competitive metros and for DUI |
| Management | 10–20% of spend, or a flat retainer | Confirm whether tracking setup and landing pages are included or billed separately |
The more useful question is the one from section two: what can you afford to pay for a signed case, given your average retainer? Everything else follows from that number, and any consultant who quotes you a monthly figure before asking it is selling a package rather than solving your problem.
Section 12Questions Defense Attorneys Ask
Do Google Ads work for criminal defense attorneys?
They can, and the economics are more favorable than most legal practice areas because retainers make case value knowable immediately. Whether they work for your firm depends on your average retainer, your after-hours answering, and whether you can tolerate a low-volume account that takes longer to produce readable data.
How much should a criminal defense firm spend on Google Ads?
Work backward from your average retainer rather than starting with a budget. If a case is worth $4,500 and you’ll spend 20% of fee revenue to acquire one, you can afford roughly $900 per signed case — then multiply by how many cases a month you want, and check whether there’s enough search volume in your market to supply them.
Why is my cost per click so high for DUI keywords?
Because a DUI client is worth several thousand dollars and every defense firm in your county knows it. High click costs are a symptom of high case value, not of something being broken. The question isn’t whether a click is expensive — it’s whether your cost per signed case is inside what a retainer can support.
Should I use my homepage as the landing page?
Usually not. Someone who searched for a DUI attorney and lands on a general firm homepage has to work out whether you handle their charge, cover their county, and what happens if they call. A dedicated page answers those before they have to look.
How long before I see results?
Calls can come in the first week, because you’re capturing demand that already exists. Reliable performance data takes longer — automated bidding needs conversion volume, and defense accounts are low-volume by nature. Expect a couple of months before the numbers are trustworthy enough to make big decisions from, and be skeptical of anyone promising a transformation in thirty days.
Is Google Ads better than SEO for a defense firm?
They answer different problems. Paid search produces calls this week and stops when you stop paying. SEO compounds and costs nothing per click, but takes months and can’t be turned up when your calendar is light. Most firms that can afford both run both — and firms that can only afford one usually need the one that works this month.
Can I run this myself?
Yes, and at lower budgets you probably should. The platform is learnable, and a competent attorney can run a simple, well-segmented DUI campaign. What’s genuinely hard is the measurement layer — call tracking, intake capture, and uploading outcomes back to Google inside the upload window. That’s where most self-managed accounts stall, and it’s the part worth paying for.
FinallyThe Point
Criminal defense firms have a measurement advantage that personal injury firms would envy: you know what a case is worth the day you sign it. That single fact makes it possible to run paid search as a system with a known cost per client, rather than a monthly expense you hope is working.
Almost nobody does it. Most defense accounts optimize toward call volume, which counts wrong numbers, out-of-county callers, people looking for a public defender, and the occasional actual client, all as the same thing.
Fix what you’re counting. The rest is arithmetic you can already do.
Want a straight read on your account?
Bring your average retainer and roughly how many calls you get a month. I’ll tell you whether your conversion tracking can be trusted, what your real cost per signed case looks like, and which part of the chain is leaking. If your setup is already sound, I’ll say so — and if paid search isn’t right for your firm, I’ll tell you that too.
Talk to Henry directly 15 minutes · Henry Bell, not an account rep
