diff --git a/node/src/components/consensus.rs b/node/src/components/consensus.rs
index 1d1a2b85ff..c0d0355d3b 100644
--- a/node/src/components/consensus.rs
+++ b/node/src/components/consensus.rs
@@ -2,12 +2,9 @@
 
 mod consensus_protocol;
 mod era_supervisor;
-mod traits;
-// TODO: remove when we actually construct a Highway era
-mod protocols;
-// TODO: remove when we actually construct a Highway era
-#[allow(unused)]
 mod highway_core;
+mod protocols;
+mod traits;
 
 #[cfg(test)]
 #[allow(unused)]
diff --git a/node/src/components/consensus/highway_core/evidence.rs b/node/src/components/consensus/highway_core/evidence.rs
index 581ff1d35c..6568f14fea 100644
--- a/node/src/components/consensus/highway_core/evidence.rs
+++ b/node/src/components/consensus/highway_core/evidence.rs
@@ -1,6 +1,5 @@
-use super::{validators::ValidatorIndex, vertex::WireVote};
-use crate::components::consensus::highway_core::vertex::SignedWireVote;
-use crate::components::consensus::traits::Context;
+use super::validators::ValidatorIndex;
+use crate::components::consensus::{highway_core::vertex::SignedWireVote, traits::Context};
 use serde::{Deserialize, Serialize};
 
 /// Evidence that a validator is faulty.
diff --git a/node/src/components/consensus/highway_core/finality_detector.rs b/node/src/components/consensus/highway_core/finality_detector.rs
index 2340b71796..a4f8c5d66e 100644
--- a/node/src/components/consensus/highway_core/finality_detector.rs
+++ b/node/src/components/consensus/highway_core/finality_detector.rs
@@ -1,3 +1,4 @@
+#![allow(unused)] // TODO: Use the finality detector!
 use std::{collections::BTreeMap, iter};
 
 use super::{
diff --git a/node/src/components/consensus/highway_core/highway.rs b/node/src/components/consensus/highway_core/highway.rs
index a12d813f95..c24a5c3c3b 100644
--- a/node/src/components/consensus/highway_core/highway.rs
+++ b/node/src/components/consensus/highway_core/highway.rs
@@ -1,9 +1,8 @@
 use super::{
     active_validator::{ActiveValidator, Effect},
-    evidence::Evidence,
-    state::{State, VoteError, Weight},
+    state::{State, VoteError},
     validators::Validators,
-    vertex::{Dependency, Vertex, WireVote},
+    vertex::{Dependency, Vertex},
 };
 use thiserror::Error;
 use tracing::warn;
@@ -71,12 +70,6 @@ impl<C: Context> From<PreValidatedVertex<C>> for Vertex<C> {
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub(crate) struct ValidVertex<C: Context>(Vertex<C>);
 
-impl<C: Context> ValidVertex<C> {
-    pub(crate) fn vertex(&self) -> &Vertex<C> {
-        &self.0
-    }
-}
-
 #[derive(Debug)]
 pub(crate) struct HighwayParams<C: Context> {
     /// The protocol instance ID. This needs to be unique, to prevent replay attacks.
@@ -231,10 +224,6 @@ impl<C: Context> Highway<C> {
         }
     }
 
-    pub(crate) fn state(&self) -> &State<C> {
-        &self.state
-    }
-
     fn on_new_vote(&self, vhash: &C::Hash, timestamp: Timestamp) -> Vec<Effect<C>> {
         self.active_validator
             .as_ref()
@@ -266,7 +255,7 @@ impl<C: Context> Highway<C> {
     fn do_validate_vertex(&self, vertex: &Vertex<C>) -> Result<(), VertexError> {
         match vertex {
             Vertex::Vote(vote) => Ok(self.state.validate_vote(vote)?),
-            Vertex::Evidence(evidence) => Ok(()),
+            Vertex::Evidence(_evidence) => Ok(()),
         }
     }
 
@@ -297,10 +286,9 @@ pub(crate) mod tests {
             highway_core::{
                 highway::{Highway, HighwayParams, VertexError, VoteError},
                 state::tests::{
-                    AddVoteError, TestContext, ALICE, ALICE_SEC, BOB, BOB_SEC, CAROL, CAROL_SEC,
-                    WEIGHTS,
+                    TestContext, ALICE, ALICE_SEC, BOB, BOB_SEC, CAROL, CAROL_SEC, WEIGHTS,
                 },
-                state::{State, Weight},
+                state::State,
                 validators::Validators,
                 vertex::{SignedWireVote, Vertex, WireVote},
                 vote::Panorama,
diff --git a/node/src/components/consensus/highway_core/state.rs b/node/src/components/consensus/highway_core/state.rs
index c1c4c46f51..03c8d03ac3 100644
--- a/node/src/components/consensus/highway_core/state.rs
+++ b/node/src/components/consensus/highway_core/state.rs
@@ -2,7 +2,6 @@ use std::{
     cmp::Ordering,
     collections::HashMap,
     convert::identity,
-    fmt::{self, Display, Formatter},
     iter,
     ops::{Div, Mul},
 };
diff --git a/node/src/components/consensus/highway_core/tallies.rs b/node/src/components/consensus/highway_core/tallies.rs
index 6c0bda8333..ee1083cd3c 100644
--- a/node/src/components/consensus/highway_core/tallies.rs
+++ b/node/src/components/consensus/highway_core/tallies.rs
@@ -176,11 +176,6 @@ impl<'a, C: Context> Tallies<'a, C> {
             .or_insert_with(|| Tally::new(bhash, weight));
     }
 
-    /// Returns the number tallies.
-    pub(crate) fn len(&self) -> usize {
-        self.0.len()
-    }
-
     /// Returns `true` if there are no tallies in this map.
     pub(crate) fn is_empty(&self) -> bool {
         self.0.is_empty()
@@ -194,6 +189,13 @@ mod tests {
         *,
     };
 
+    impl<'a> Tallies<'a, TestContext> {
+        /// Returns the number of tallies.
+        pub(crate) fn len(&self) -> usize {
+            self.0.len()
+        }
+    }
+
     #[test]
     fn tallies() -> Result<(), AddVoteError<TestContext>> {
         let mut state = State::new(WEIGHTS, 0);
diff --git a/node/src/components/consensus/highway_core/validators.rs b/node/src/components/consensus/highway_core/validators.rs
index 186854073e..e4256c99ed 100644
--- a/node/src/components/consensus/highway_core/validators.rs
+++ b/node/src/components/consensus/highway_core/validators.rs
@@ -56,10 +56,6 @@ impl<VID: Eq + Hash> Validators<VID> {
         self.validators.iter().map(|v| v.weight()).sum()
     }
 
-    pub(crate) fn len(&self) -> usize {
-        self.validators.len()
-    }
-
     pub(crate) fn get_index(&self, id: &VID) -> ValidatorIndex {
         *self.index_by_id.get(id).unwrap()
     }
diff --git a/node/src/components/consensus/highway_core/vertex.rs b/node/src/components/consensus/highway_core/vertex.rs
index 219bb5b6d8..defa9df329 100644
--- a/node/src/components/consensus/highway_core/vertex.rs
+++ b/node/src/components/consensus/highway_core/vertex.rs
@@ -1,5 +1,3 @@
-use std::iter;
-
 use serde::{Deserialize, Serialize};
 
 use super::{evidence::Evidence, validators::ValidatorIndex, vote::Panorama};
diff --git a/node/src/components/consensus/highway_core/vote.rs b/node/src/components/consensus/highway_core/vote.rs
index 6a234806e3..debf695bf2 100644
--- a/node/src/components/consensus/highway_core/vote.rs
+++ b/node/src/components/consensus/highway_core/vote.rs
@@ -1,11 +1,8 @@
 use serde::{Deserialize, Serialize};
 
-use super::{state::State, validators::ValidatorIndex, vertex::WireVote};
+use super::{state::State, validators::ValidatorIndex};
 use crate::{
-    components::consensus::{
-        highway_core::vertex::SignedWireVote,
-        traits::{Context, ValidatorSecret},
-    },
+    components::consensus::{highway_core::vertex::SignedWireVote, traits::Context},
     types::Timestamp,
 };