diff --git a/src/commands/moderation.rs b/src/commands/moderation.rs
index 8b13789..81f290b 100644
--- a/src/commands/moderation.rs
+++ b/src/commands/moderation.rs
@@ -1 +1,119 @@
+use crate::{
+    utilities::{
+        messages, models,
+        modlog::{self, ModType},
+    },
+    Context, Error,
+};
 
+use chrono::Utc;
+use poise::serenity_prelude::UserId;
+use tracing::{error, info};
+
+#[poise::command(
+    prefix_command,
+    slash_command,
+    category = "Moderator",
+    required_permissions = "BAN_MEMBERS",
+    required_bot_permissions = "BAN_MEMBERS | SEND_MESSAGES",
+    guild_only,
+    ephemeral
+)]
+pub async fn ban(
+    context: Context<'_>,
+    #[description = "The user to ban."]
+    #[rename = "user"]
+    user_id: UserId,
+    #[description = "Reason for the ban."]
+    #[max_length = 80]
+    reason: Option<String>,
+) -> Result<(), Error> {
+    let database = &context.data().sqlite;
+
+    let user = models::user(context, user_id).await?;
+
+    let moderator = context.author();
+    let moderator_id = moderator.id;
+
+    if user.system {
+        let reply = messages::error_reply("Cannot ban a system user.", false);
+        context.send(reply).await?;
+        return Ok(());
+    }
+
+    if user_id == moderator_id {
+        let reply = messages::error_reply("Sorry, but you cannot ban yourself.", true);
+        context.send(reply).await?;
+
+        return Ok(());
+    }
+
+    let reason = reason.unwrap_or_else(|| "No reason provided.".to_string());
+
+    let reason_char_count = reason.chars().count();
+    if reason_char_count > 80 {
+        let reply = messages::info_reply("Reason must be no more than 80 characters long.", true);
+        context.send(reply).await?;
+
+        return Ok(());
+    }
+
+    let result = {
+        let (user_name, user_mention) = (&user.name, models::user_mention(context, user_id).await?);
+
+        let (moderator_name, moderator_mention) =
+            (&moderator.name, models::author_mention(context)?);
+
+        let (guild_id, guild_name) = {
+            let guild_id = context.guild_id().unwrap();
+            let guild = context.guild().unwrap();
+            (guild_id, guild.name.clone())
+        };
+
+        let created_at = Utc::now().naive_utc();
+
+        let mut user_mod_history = modlog::select_modlog_from_users(&user_id, database).await?;
+
+        let message = messages::info_message(format!(
+            "You've been banned from {guild_name} by {moderator_mention} for {reason}.",
+        ));
+        let dm = user.direct_message(context, message).await;
+
+        if let Err(why) = dm {
+            error!("Couldn't send DM to @{user_name}: {why:?}");
+        }
+
+        match guild_id.ban_with_reason(context, user_id, 0, &reason).await {
+            Ok(_) => {
+                modlog::insert_modlog(
+                    ModType::Ban,
+                    &guild_id,
+                    &user_id,
+                    &moderator_id,
+                    &reason,
+                    created_at,
+                    database,
+                )
+                .await?;
+
+                user_mod_history += 1;
+
+                modlog::update_users_set_modlog(&user_id, user_mod_history, database).await?;
+
+                info!("@{moderator_name} banned @{user_name} from {guild_name}: {reason}");
+                Ok(format!("{user_mention} has been banned."))
+            }
+            Err(why) => {
+                error!("Couldn't ban @{user_name}: {why:?}");
+                Err(format!("Sorry, but I couldn't ban {user_mention}."))
+            }
+        }
+    };
+
+    if let Err(why) = result {
+        let reply = messages::error_reply(&why, true);
+        context.send(reply).await?;
+    }
+
+    Ok(())
+}
diff --git a/src/commands/setup.rs b/src/commands/setup.rs
index 860da97..da441a7 100644
--- a/src/commands/setup.rs
+++ b/src/commands/setup.rs
@@ -57,7 +57,12 @@ pub async fn prefix(context: Context<'_>) -> Result<(), Error> {
     required_bot_permissions = "SEND_MESSAGES",
     guild_only = true
 )]
-pub async fn set(context: Context<'_>, prefix: Option<String>) -> Result<(), Error> {
+pub async fn set(
+    context: Context<'_>,
+    #[description = "The new prefix."]
+    #[max_length = 5]
+    prefix: Option<String>,
+) -> Result<(), Error> {
     if let Some(guild_id) = context.guild_id() {
         let prefix = prefix.unwrap_or_else(|| "+".to_string());
 
diff --git a/src/main.rs b/src/main.rs
index cf3b11b..9d5c472 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -12,7 +12,7 @@ use utilities::types::GuildSettings;
 mod commands;
 mod utilities;
 
-use crate::commands::{info::*, math::*, owner::*, setup::*, utilities::*};
+use crate::commands::{info::*, math::*, owner::*, setup::*, utilities::*, moderation::*};
 
 use sqlx::SqlitePool;
 
@@ -181,6 +181,9 @@ async fn main() {
                 bot_stat(),
                 multiply(),
                 add(),
+                divide(),
+                subtract(),
+                ban(),
                 help(),
                 ping(),
                 servers(),
diff --git a/src/utilities/embeds.rs b/src/utilities/embeds.rs
index 9d9ab1d..09e6c45 100644
--- a/src/utilities/embeds.rs
+++ b/src/utilities/embeds.rs
@@ -1,7 +1,11 @@
 use chrono::NaiveDateTime;
 use serenity::{
-    all::User,
+    all::{
+        colours::css,
+        User,
+    },
     builder::{CreateEmbed, CreateEmbedAuthor},
+    model::Colour,
 };
 use std::fmt::Write;
 
@@ -61,3 +65,15 @@ pub fn warnings_command_embed(
         .author(embed_author)
         .fields(embed_fields)
 }
+
+pub fn error_message_embed(message: &String) -> CreateEmbed {
+    CreateEmbed::default()
+        .description(format!("{message}"))
+        .colour(css::DANGER)
+}
+
+pub fn info_message_embed(message: &String) -> CreateEmbed {
+    CreateEmbed::default()
+        .description(format!("{message}"))
+        .colour(Colour::BLUE)
+}
diff --git a/src/utilities/messages.rs b/src/utilities/messages.rs
new file mode 100644
index 0000000..64324c1
--- /dev/null
+++ b/src/utilities/messages.rs
@@ -0,0 +1,36 @@
+use poise::CreateReply;
+use serenity::builder::{
+    CreateInteractionResponse, CreateInteractionResponseMessage, CreateMessage,
+};
+
+use super::embeds;
+
+pub async fn error_response(
+    message: impl Into<String>,
+    ephemeral: bool,
+) -> CreateInteractionResponse {
+    let embed = embeds::error_message_embed(&message.into());
+
+    let response_message = CreateInteractionResponseMessage::new()
+        .embed(embed)
+        .ephemeral(ephemeral);
+    CreateInteractionResponse::Message(response_message)
+}
+
+pub fn info_message(message: impl Into<String>) -> CreateMessage {
+    let embed = embeds::info_message_embed(&message.into());
+
+    CreateMessage::default().embed(embed)
+}
+
+pub fn error_reply(message: impl Into<String>, ephemeral: bool) -> CreateReply {
+    let embed = embeds::error_message_embed(&message.into());
+
+    CreateReply::default().embed(embed).ephemeral(ephemeral)
+}
+
+pub fn info_reply(message: impl Into<String>, ephemeral: bool) -> CreateReply {
+    let embed = embeds::info_message_embed(&message.into());
+
+    CreateReply::default().embed(embed).ephemeral(ephemeral)
+}
diff --git a/src/utilities/mod.rs b/src/utilities/mod.rs
index f2bfc87..34dfd72 100644
--- a/src/utilities/mod.rs
+++ b/src/utilities/mod.rs
@@ -1,5 +1,8 @@
 pub mod embeds;
 pub mod event_handler;
 pub mod git;
+pub mod messages;
+pub mod models;
 pub mod modlog;
+pub mod paginate;
 pub mod types;
diff --git a/src/utilities/models.rs b/src/utilities/models.rs
new file mode 100644
index 0000000..12a8818
--- /dev/null
+++ b/src/utilities/models.rs
@@ -0,0 +1,27 @@
+use crate::Context;
+use poise::serenity_prelude::{model::ModelError, User, UserId};
+use serenity::all::{Mention, Mentionable};
+use tracing::error;
+
+pub fn author(context: Context<'_>) -> Result<&User, ModelError> {
+    Ok(context.author())
+}
+
+pub fn author_mention(context: Context<'_>) -> Result<Mention, ModelError> {
+    let author = author(context)?;
+    Ok(author.mention())
+}
+
+pub async fn user(context: Context<'_>, user_id: UserId) -> Result<User, ModelError> {
+    match user_id.to_user(context).await {
+        Ok(user) => Ok(user),
+        Err(why) => {
+            error!("Couldn't get user: {why:?}");
+            return Err(ModelError::MemberNotFound);
+        }
+    }
+}
+
+pub async fn user_mention(context: Context<'_>, user_id: UserId) -> Result<Mention, ModelError> {
+    Ok(user(context, user_id).await?.mention())
+}
diff --git a/src/utilities/modlog.rs b/src/utilities/modlog.rs
index 609c983..5567be8 100644
--- a/src/utilities/modlog.rs
+++ b/src/utilities/modlog.rs
@@ -3,7 +3,7 @@ use poise::serenity_prelude as serenity;
 use serenity::all::{GuildId, UserId};
 use sqlx::{Row, SqlitePool};
 use tokio::time::Instant;
-use tracing::{error, info};
+use tracing::{debug, error, info};
 use uuid::Uuid;
 
 pub enum ModType {
@@ -100,7 +100,7 @@ pub async fn delete_mod_log(
     Ok(())
 }
 
-pub async fn insert_mod_log(
+pub async fn insert_modlog(
     action_type: ModType,
     guild_id: &GuildId,
     user_id: &UserId,
@@ -135,3 +135,54 @@ pub async fn insert_mod_log(
 
     Ok(())
 }
+
+pub async fn select_modlog_from_users(
+    user_id: &UserId,
+    pool: &SqlitePool,
+) -> Result<i32, sqlx::Error> {
+    let start_time = Instant::now();
+
+    let query =
+        sqlx::query("SELECT infractions FROM users WHERE user_id = ?").bind(i64::from(*user_id));
+    let row = match query.fetch_one(pool).await {
+        Ok(infractions) => infractions,
+        Err(why) => {
+            error!("Couldn't select infractions from Users: {why:?}");
+            return Err(why);
+        }
+    };
+
+    let infractions = match row.try_get::<i32, _>("infractions") {
+        Ok(infractions) => infractions,
+        Err(why) => {
+            error!("Couldn't get infractions: {why:?}");
+            return Err(why);
+        }
+    };
+
+    let elapsed_time = start_time.elapsed();
+    debug!("Selected infractions from Users in {elapsed_time:.2?}");
+
+    Ok(infractions)
+}
+
+pub async fn update_users_set_modlog(
+    user_id: &UserId,
+    infractions: i32,
+    pool: &SqlitePool,
+) -> Result<(), sqlx::Error> {
+    let start_time = Instant::now();
+
+    let query = sqlx::query("UPDATE users SET infractions = ? WHERE user_id = ?")
+        .bind(infractions)
+        .bind(i64::from(*user_id));
+    if let Err(why) = query.execute(pool).await {
+        error!("Couldn't update infractions for user(s) in Users: {why:?}");
+        return Err(why);
+    }
+
+    let elapsed_time = start_time.elapsed();
+    debug!("Updated infractions for user(s) within Users in {elapsed_time:.2?}");
+
+    Ok(())
+}
diff --git a/src/utilities/paginate.rs b/src/utilities/paginate.rs
new file mode 100644
index 0000000..08dac5e
--- /dev/null
+++ b/src/utilities/paginate.rs
@@ -0,0 +1,66 @@
+use poise::serenity_prelude as serenity;
+use uuid::Uuid;
+
+use crate::Context;
+
+/// Paginates a list of embeds using UUID as custom ID to identify the buttons.
+pub async fn paginate<U, E>(
+    ctx: Context<'_>,
+    pages: Vec<serenity::all::CreateEmbed>,
+) -> Result<(), serenity::Error> {
+    // Define some unique identifiers for the navigation buttons
+    let ctx_id = Uuid::new_v4();
+    let prev_button_id = format!("{}prev", ctx_id);
+    let next_button_id = format!("{}next", ctx_id);
+
+    // Send the embed with the first page as content
+    let reply = {
+        let components = serenity::CreateActionRow::Buttons(vec![
+            serenity::CreateButton::new(&prev_button_id).emoji('◀'),
+            serenity::CreateButton::new(&next_button_id).emoji('▶'),
+        ]);
+
+        poise::CreateReply::default()
+            .embed(pages[0].clone())
+            .components(vec![components])
+    };
+
+    ctx.send(reply).await?;
+
+    // Loop through incoming interactions with the navigation buttons
+    let mut current_page = 0;
+    while let Some(press) = serenity::collector::ComponentInteractionCollector::new(ctx)
+        // We defined our button IDs to start with `ctx_id`. If they don't, some other command's
+        // button was pressed
+        .filter(move |press| press.data.custom_id.starts_with(&ctx_id.to_string()))
+        // Timeout when no navigation button has been pressed for 24 hours
+        .timeout(std::time::Duration::from_secs(3600 * 24))
+        .await
+    {
+        // Depending on which button was pressed, go to next or previous page
+        if press.data.custom_id == next_button_id {
+            current_page += 1;
+            if current_page >= pages.len() {
+                current_page = 0;
+            }
+        } else if press.data.custom_id == prev_button_id {
+            current_page = current_page.checked_sub(1).unwrap_or(pages.len() - 1);
+        } else {
+            // This is an unrelated button interaction
+            continue;
+        }
+
+        // Update the message with the new page contents
+        press
+            .create_response(
+                ctx.serenity_context(),
+                serenity::CreateInteractionResponse::UpdateMessage(
+                    serenity::CreateInteractionResponseMessage::new()
+                        .embed(pages[current_page].clone()),
+                ),
+            )
+            .await?;
+    }
+
+    Ok(())
+}