diff --git a/server/domain/src/form/answer/models.rs b/server/domain/src/form/answer/models.rs
index b64ffcc5..0f535568 100644
--- a/server/domain/src/form/answer/models.rs
+++ b/server/domain/src/form/answer/models.rs
@@ -4,7 +4,6 @@ use deriving_via::DerivingVia;
 #[cfg(test)]
 use proptest_derive::Arbitrary;
 use serde::{Deserialize, Serialize};
-use std::collections::HashMap;
 use types::non_empty_string::NonEmptyString;
 
 use crate::{
diff --git a/server/domain/src/form/answer/service.rs b/server/domain/src/form/answer/service.rs
index 3f11082e..8ba576ff 100644
--- a/server/domain/src/form/answer/service.rs
+++ b/server/domain/src/form/answer/service.rs
@@ -2,13 +2,10 @@ use async_trait::async_trait;
 use chrono::Utc;
 use errors::{domain::DomainError, Error};
 
-use crate::types::verified::{Verified, Verifier};
 use crate::{
-    form::{
-        answer::models::{AnswerEntry, AnswerTitle},
-        models::{FormId, Visibility},
-    },
+    form::{answer::models::AnswerEntry, models::Visibility},
     repository::form::form_repository::FormRepository,
+    types::verified::{Verified, Verifier},
     user::models::User,
 };
 
@@ -39,7 +36,7 @@ impl<FormRepo: FormRepository> Verifier<AnswerEntry> for PostAnswerEntriesVerifi
             .is_within_period(Utc::now());
 
         if is_public_form && is_within_period {
-            Ok(Self::new(target))
+            Ok(Self::new_verified(target))
         } else {
             Err(Error::from(DomainError::Forbidden))
         }
diff --git a/server/domain/src/form/models.rs b/server/domain/src/form/models.rs
index 1e7e7460..64c46d69 100644
--- a/server/domain/src/form/models.rs
+++ b/server/domain/src/form/models.rs
@@ -1,6 +1,6 @@
 use chrono::{DateTime, Utc};
 #[cfg(test)]
-use common::test_utils::{arbitrary_date_time, arbitrary_opt_date_time};
+use common::test_utils::arbitrary_date_time;
 use derive_getters::Getters;
 use deriving_via::DerivingVia;
 use errors::domain::DomainError;
diff --git a/server/domain/src/form/service.rs b/server/domain/src/form/service.rs
index 3934cdae..a324f901 100644
--- a/server/domain/src/form/service.rs
+++ b/server/domain/src/form/service.rs
@@ -88,7 +88,10 @@ mod tests {
 
     use super::*;
     use crate::{
-        form::{answer::models::FormAnswerContent, question::models::QuestionId},
+        form::{
+            answer::models::{AnswerId, FormAnswerContent},
+            question::models::QuestionId,
+        },
         repository::form::{
             answer_repository::MockAnswerRepository, form_repository::MockFormRepository,
             question_repository::MockQuestionRepository,
@@ -104,9 +107,7 @@ mod tests {
         let default_answer_title = DefaultAnswerTitle::new(Some(
             NonEmptyString::try_new(format!(
                 "Answer to ${}, ${}, ${}",
-                first_question_id.to_string(),
-                second_question_id.to_string(),
-                third_question_id.to_string()
+                first_question_id, second_question_id, third_question_id
             ))
             .unwrap(),
         ));
diff --git a/server/domain/src/repository/form/answer_repository.rs b/server/domain/src/repository/form/answer_repository.rs
index 430bd8fb..211063e1 100644
--- a/server/domain/src/repository/form/answer_repository.rs
+++ b/server/domain/src/repository/form/answer_repository.rs
@@ -2,11 +2,13 @@ use async_trait::async_trait;
 use errors::Error;
 use mockall::automock;
 
-use crate::form::{
-    answer::models::{AnswerEntry, AnswerId, FormAnswerContent},
-    models::FormId,
+use crate::{
+    form::{
+        answer::models::{AnswerEntry, AnswerId, FormAnswerContent},
+        models::FormId,
+    },
+    types::verified::Verified,
 };
-use crate::types::verified::Verified;
 
 #[automock]
 #[async_trait]
diff --git a/server/domain/src/types/verified.rs b/server/domain/src/types/verified.rs
index 4e68dafe..bfeec330 100644
--- a/server/domain/src/types/verified.rs
+++ b/server/domain/src/types/verified.rs
@@ -20,7 +20,7 @@ impl<T> Verified<T> {
 pub trait Verifier<T> {
     async fn verify(self) -> Result<Verified<T>, Error>;
 
-    fn new(inner: T) -> Verified<T> {
+    fn new_verified(inner: T) -> Verified<T> {
         Verified { inner }
     }
 }
diff --git a/server/infra/resource/src/repository/form_repository_impls/answer_repository_impl.rs b/server/infra/resource/src/repository/form_repository_impls/answer_repository_impl.rs
index b7db73fb..77f65664 100644
--- a/server/infra/resource/src/repository/form_repository_impls/answer_repository_impl.rs
+++ b/server/infra/resource/src/repository/form_repository_impls/answer_repository_impl.rs
@@ -1,19 +1,20 @@
-use crate::{
-    database::components::{DatabaseComponents, FormAnswerDatabase},
-    repository::Repository,
-};
 use async_trait::async_trait;
-use domain::types::verified::Verified;
 use domain::{
     form::{
         answer::models::{AnswerEntry, AnswerId, FormAnswerContent},
         models::FormId,
     },
     repository::form::answer_repository::AnswerRepository,
+    types::verified::Verified,
 };
 use errors::Error;
 use futures::{stream, StreamExt};
 
+use crate::{
+    database::components::{DatabaseComponents, FormAnswerDatabase},
+    repository::Repository,
+};
+
 #[async_trait]
 impl<Client: DatabaseComponents + 'static> AnswerRepository for Repository<Client> {
     #[tracing::instrument(skip(self))]
@@ -37,7 +38,7 @@ impl<Client: DatabaseComponents + 'static> AnswerRepository for Repository<Clien
             .form_answer()
             .get_answers(answer_id)
             .await?
-            .map(|posted_answers_dto| Ok(posted_answers_dto.try_into()?))
+            .map(|posted_answers_dto| posted_answers_dto.try_into())
             .transpose()
     }
 
@@ -77,7 +78,7 @@ impl<Client: DatabaseComponents + 'static> AnswerRepository for Repository<Clien
     #[tracing::instrument(skip(self))]
     async fn get_all_answers(&self) -> Result<Vec<AnswerEntry>, Error> {
         stream::iter(self.client.form_answer().get_all_answers().await?)
-            .then(|posted_answers_dto| async { Ok(posted_answers_dto.try_into()?) })
+            .then(|posted_answers_dto| async { posted_answers_dto.try_into() })
             .collect::<Vec<Result<AnswerEntry, _>>>()
             .await
             .into_iter()
diff --git a/server/presentation/src/handlers/form/answer_handler.rs b/server/presentation/src/handlers/form/answer_handler.rs
index 457ed61b..bc63903a 100644
--- a/server/presentation/src/handlers/form/answer_handler.rs
+++ b/server/presentation/src/handlers/form/answer_handler.rs
@@ -57,7 +57,7 @@ pub async fn get_answer_handler(
     State(repository): State<RealInfrastructureRepository>,
     Path(_answer_id): Path<AnswerId>,
 ) -> impl IntoResponse {
-    let form_answer_use_case = AnswerUseCase {
+    let _form_answer_use_case = AnswerUseCase {
         answer_repository: repository.form_answer_repository(),
         form_repository: repository.form_repository(),
         comment_repository: repository.form_comment_repository(),
@@ -111,7 +111,7 @@ pub async fn get_answer_by_form_id_handler(
     State(repository): State<RealInfrastructureRepository>,
     Path(_form_id): Path<FormId>,
 ) -> impl IntoResponse {
-    let form_answer_use_case = AnswerUseCase {
+    let _form_answer_use_case = AnswerUseCase {
         answer_repository: repository.form_answer_repository(),
         form_repository: repository.form_repository(),
         comment_repository: repository.form_comment_repository(),
diff --git a/server/usecase/src/forms/answer.rs b/server/usecase/src/forms/answer.rs
index db51a509..9573dde6 100644
--- a/server/usecase/src/forms/answer.rs
+++ b/server/usecase/src/forms/answer.rs
@@ -1,10 +1,9 @@
-use crate::dto::AnswerDto;
-use domain::form::answer::models::AnswerEntry;
-use domain::form::answer::service::PostAnswerEntriesVerifier;
-use domain::types::verified::Verifier;
 use domain::{
     form::{
-        answer::models::{AnswerId, FormAnswerContent},
+        answer::{
+            models::{AnswerEntry, AnswerId, FormAnswerContent},
+            service::PostAnswerEntriesVerifier,
+        },
         models::FormId,
         service::DefaultAnswerTitleDomainService,
     },
@@ -13,11 +12,14 @@ use domain::{
         comment_repository::CommentRepository, form_repository::FormRepository,
         question_repository::QuestionRepository,
     },
+    types::verified::Verifier,
     user::models::User,
 };
 use errors::{usecase::UseCaseError::AnswerNotFound, Error};
 use futures::{stream, try_join, StreamExt};
 
+use crate::dto::AnswerDto;
+
 pub struct AnswerUseCase<
     'a,
     AnswerRepo: AnswerRepository,