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Traces Of Evidence Slot Review

by GeniiReleased May 3, 2018

Free demo - play instantly in your browser

Traces Of Evidence is a 5x3, 40-line Genii Saucify slot with a CSI vibe, three scatter types, and a morgue-set Autopsy bonus where you pick 5 body areas on a John Doe.

Demo player curtain

Specifications

Game TypeSlots
RTP96%
VolatilityMedium
Grid5x3
Paylines40 paylines (player-selectable 1-40)
Min Bet$0.01
Max Bet$50
Themes
Features

Traces Of Evidence Slot Overview

A homicide scene after dark, and the reels are the evidence. Genii built Traces Of Evidence as a straight CSI procedural: police tape stretched over the top of the grid, cruiser lights bouncing off wet asphalt, bullets and a bloodied pistol and a toe-tagged body under a sheet sitting on the reels. Nothing cartoonish anywhere in it.

Underneath the mood it's a plain 5x3 game on 40 lines. The odd part is the symbol set. Three separate scatters share the reels: one pays on its own, one hands out free spins, and one drags the player off the reels and into the morgue for the Autopsy round. That last one is the reason to load it.

Theme & Design

The background is a single unbroken street shot. A hooded figure stands in silhouette at the lower left with a pistol at his side, red and blue light smearing across the puddles from the cruiser parked behind him, a second set of tail lights glowing away in the rear. Over the top runs a yellow POLICE LINE DO NOT CROSS banner carrying the title in blunt black capitals. The crime scene art is photographic rather than illustrated, and that is what sells it.

The best touch is the card ranks. Instead of carved letters they are petri dishes, glass lids and all, each letter grown inside in a smear of coloured culture, pink for one, green for another. The FACE MATCH symbol is a database terminal holding a clean input photo against a battered, bloodied mugshot, stuck forever at 10% analysed. And when a line connects, the rest of the grid drains to black and white while the winning symbols keep their colour and a DNA trace scrolls underneath them. Cheap trick. Works every time.

Symbols & Paytable

SymbolPayout
Police Badge Wild40 / 300 / 3,000 coins for 3/4/5substitutes everything except the two feature scatters, and pays its own line
Detective (top line symbol)40 / 300 / 3,000 coins for 3/4/5identical to the Wild, so five of either is worth the same
Fingerprint Scatter8 / 15 / 20 free spins for 3/4/5no coin payout of its own, pure trigger, pays from anywhere
Crime Scene Photo Scattertriggers the Autopsy round on 3 or moreno coin payout, works in the base game and inside free spins
Paying Scatter2 / 8 / 20 coins for 3/4/5multiplied by total credits wagered, triggers nothing
Toe-Tagged Corpse35 / 80 / 250 coins for 3/4/5
Bloody Pistol30 / 60 / 100 coins for 3/4/5
Bullets20 / 25 / 80 coins for 3/4/5
Face Match Terminal14 / 20 / 50 coins for 3/4/5
K Petri Dish10 / 15 / 40 coins for 3/4/5
Q Petri Dish6 / 10 / 30 coins for 3/4/5
J Petri Dish4 / 8 / 20 coins for 3/4/5

Features & How They Work

The Autopsy Round

Three or more crime scene photos anywhere on the reels pull the player into a morgue to examine a John Doe. The examination works through the body one area at a time. Some spots give up a cash prize, some come up empty, and whatever gets found is totalled and paid at the end, scaled to the bet that triggered it. There is no wheel, no ladder, no meter. Just a body and a set of attempts.

The rule that matters: this can trigger during free spins as well as in the base game. Most Genii titles switch their bonus triggers off once free spins begin, so the double-bonus scenario here is worth knowing about even though it is rare.

Free Spins

Three, four or five fingerprint scatters anywhere award 8, 15 or 20 free spins. The round retriggers on the same scatter count, and the bet and line selection stay locked to whatever was running on the triggering spin.

What the round does not have is a multiplier. Not x2, not x3, nothing. Wins pay at their normal values, which puts this well behind the studio's usual free spins design, where doubling or tripling is close to standard.

The Badge Wild

The Wild is a Las Vegas Metropolitan Police star, gold and enamelled, and it substitutes for every symbol except the fingerprint and crime scene photo scatters. It also pays a line of its own at 40, 300 and 3,000 coins for three, four and five.

Those are the same numbers the highest regular symbol pays, which flattens the top of the table. Landing a full line of Wilds should feel like the payoff of the session. It pays exactly what a full line of the top symbol pays.

The Scatter That Only Pays

The third scatter type does nothing except pay. Three, four or five anywhere award 2, 8 or 20 coins multiplied by the total credits wagered rather than by a single line, so it hits regardless of the payline layout and regardless of how many lines are switched on. Small money, but it turns up on spins that would otherwise be dead.

Screenshots

Traces Of Evidence gameplay screenshot
Traces Of Evidence gameplay screenshot

How Traces Of Evidence Plays

The rhythm is old-school 40-line. Something lands often, and most of what lands is worth less than the spin that produced it. A three-of-a-kind at 4 or 10 coins on a two-coin line barely moves the balance. So the drift downward happens in small increments instead of long dry cliffs, which is easier on the nerves and slower to resolve into anything.

The tension is unevenly distributed. Free spins arrive and pass without changing the temperature much. The morgue is the opposite: slow, deliberate, one reveal at a time, with a fair chance of turning up nothing at a spot the player chose. It is the only stretch of the game where anyone leans forward. Everything around it is time spent waiting for a trigger, and for my money that wait runs longer than the payoff justifies.

Pros & Cons

Pros

  • Photoreal crime-scene art with a mature tone that is rare in Genii's catalogue
  • Petri-dish card symbols are the smartest piece of theming in the game
  • The Autopsy round can trigger inside free spins, which most Genii titles block
  • Bets stretch from $0.01 to $50 with lines adjustable from 1 to 40

Cons

  • Free spins carry no multiplier, so the round is only extra spins at normal value
  • Autopsy examinations can come up empty and the round ends either way
  • No buy feature, no gamble, and no published max-win ceiling to aim at
  • The top-paying symbol matches the Wild exactly, which flattens the premium hits

Is Traces Of Evidence Worth Playing?

5/10

Genii spent the budget on atmosphere and it holds up. This is one of the few games in the studio's catalogue that treats an adult like one, and the morgue examination is a proper idea rather than a generic pick round with a crime skin on it. Letting it fire during free spins was the right call too.

The maths behind it does not keep pace. There is no published ceiling to chase and nothing above the 3,000-coin five-of-a-kind, which on a two-coin line is a good hit and not much more than that. Anyone loading this is loading it for the mood and the morgue, not for what the reels do in between (which, on a 5x3 line game built in 2018, is not much).

Frequently Asked Questions

How do you trigger the Autopsy bonus in Traces Of Evidence?

Land three or more crime scene photo symbols anywhere on the reels. It triggers in the base game and also during free spins, which is unusual for a Genii title.

How many free spins does Traces Of Evidence award?

Three fingerprint scatters award 8 free spins, four award 15 and five award 20. The round retriggers, and bet and lines stay locked to the triggering spin. There is no win multiplier during it.

What is the RTP and volatility of Traces Of Evidence?

RTP is 96%. Volatility is not officially disclosed, but the mechanics play medium: frequent small line wins with the two bonus rounds carrying the upside.

Does Traces Of Evidence have a bonus buy?

No. There is no buy feature and no ante bet. Both the free spins and the Autopsy round come only from landing their scatters.

Can under-18s play Traces Of Evidence?

No. Real-money play is restricted to players aged 18 or over, or the legal age where you live. The demo runs on play credits and pays nothing real, so treat any session as entertainment and set a budget before you switch to cash.
Arina

Reviewed by Arina, PR & Content Manager

PR & Content Manager at SlotsReach

Published 7 Aug 2026 · Updated 7 Aug 2026