Defendant-appellant, Anthony J. Scherer, Jr., appeals from the order of the district court, which denied a petition to vacate his conviction for certain violations of the Gun Control Act of 1968. 1
I.
In 1974, Scherer was found guilty of nine counts of failure to record the disposition of firearms in violation of the Gun Control Act, and was sentenced to concurrent two-year terms for each count. This court affirmed.
United States v. Scherer,
Scherer again petitioned the trial court in June, 1980, seeking to have his conviction vacated. He based the petition on Fed.R. Crim.P. 35, for correction of an illegal sentence; 28 U.S.C. § 2255, as a petition for habeas relief; the All Writs Act, 28 U.S.C. § 1651, as a petition for a writ of error coram nobis; and the common law writ of error coram nobis. Scherer argued that newly discovered evidence, not disclosed to *178 him by the government at trial, recently came to light pursuant to discovery conducted in a related civil forfeiture action, United States v. Misc. Firearms, No. 74 C 877 (N.D.Ill., filed March 28, 1974). 2 Scherer claimed that this new evidence showed that perjured evidence was used against him at trial, that the act for which he was convicted was not a crime, and that several warrantless searches of his property in 1972 were unlawful under the Fourth Amendment. He also included several other allegations of irregularity in the events leading to his arrest and prosecution. Scherer asserted that this new evidence demonstrated a fundamental flaw in his trial and warranted vacating his conviction.
The district court, finding Fed.R.Crim.P. 35 3 and 28 U.S.C. § 2255 4 inapplicable, treated Scherer’s petition as one for a writ of error coram nobis. On March 3, 1981, the court denied relief, finding that Scherer’s new evidence failed to demonstrate such fundamental error in the proceedings against him as to warrant the granting of the writ and vacating his conviction. Scherer appealed to this court.
II.
In its modern treatment, the writ of error
coram nobis
is available in a criminal proceeding and is of the same general character as habeas corpus relief under 28 U.S.C. § 2255.
United States v. Morgan,
III.
Scherer argues that certain documents, undisclosed by the government at trial, but *179 recently revealed by discovery in a related civil case, demonstrate fundamental error calling for coram nobis relief. The first of these documents consists of a four page affidavit from a Bureau of Alcohol, Tobacco and Firearms (“BATF”) agent. The newly discovered document appears to contain the original notes of Trial Exhibit 30, which was offered and admitted at trial. Scherer contends, however, that Exhibit 30 is a perjured document since it is dated October 5, 1972, but describes an event of October 12, 1972. Moreover, while Exhibit 30 is dated October 5, 1972, the newly discovered document has a December 11, 1972 date crossed out with “October 5, 1972” inserted. 5 Scherer contends that he was prevented from effective cross-examination because he could have used the document to cross-examine a BATF agent.
While some differences do exist between the two documents, we agree with the district court that there are “no substantive differences which would have prejudiced petitioner at trial.”
United States v. Scherer,
No. 74 CR 99 at 5 (N.D.Ill. March 3, 1981)
(Scherer III).
The existence of minor differences does not amount to perjury.
Anderson v. United States,
Moreover, Scherer argues that his trial attorney probably did not make effective use of Exhibit 30 for impeachment purposes because the document contains a reference to his attorney as a “shyster” and relates events which Scherer claims reveal a conflict of interest on the attorney’s part. If the newly discovered document had been available at trial, he asserts, more effective cross-examination may have been possible, since the newly discovered document does not contain these references. Even if it was clear how the newly discovered document could be effectively used for impeachment purposes, Scherer overlooks the principle that new evidence which is merely impeaching is not grounds for granting a new trial.
See Hedman,
Scherer also discovered eleven pages of handwritten notes of unidentified origin in a government file. He urges that since these notes may pertain to his case, he should now have the opportunity to learn who wrote them, when they were made, and whether they contain information which might have been material to his case. It is unclear, however, what argument Scherer is making. If, on one hand, he argues that he should now have the opportunity to discover whether his speculations regarding the notes’ relevance to his case are true, a petition for a writ of error
*180
coram nobis
may not be used “to allow a defendant to fish for facts that may or may not exist and may or may not justify the motion in the first instance.”
United States v. Balistrieri,
IV.
Scherer next renews an argument he made unsuccessfully on his direct appeal. On direct appeal, he relied on Industry Circular 72-30, released by the Treasury Department in 1972, which provides, “Personal firearms on licensed premises which are segregated from firearms held for sale and which are appropriately identified as not being for sale need not be entered in the dealer’s records.” Scherer claimed that the weapons seized were a part of his private collection and were stored in his home rather than his business office. Therefore, he argued, he was exempt from recording their sale or disposition. This court found, however, that “it is immaterial whether the weapons sold were originally acquired for Scherer’s personal use or for business purposes. They became a part of his business inventory the moment they were placed on the market for resale.”
Scherer I,
In this proceeding, Scherer submits a new document and again urges this court to read a “personal” versus “business” use distinction into the Gun Control Act. Scherer cites a 1979 letter from an official at BATF, which in part describes the Bureau’s policy that a gun dealer may sell his personal firearms without recording them. Scherer asserts that his unrecorded sales were of “personal” weapons and that he has thus been convicted of an act which the government does not consider a crime.
No new facts are brought to light, however, which call for a re-examination of our decision on the direct appeal of his case. The 1979 letter merely restates the position outlined in Industry Circular 72-30, and does not overrule our earlier holding. Since no new circumstances appear, and since the issue has been fully argued and decided previously, we see no reason to disturb our previous decision.
United States v. Orejuela,
V.
The third category of Scherer’s arguments deals with allegedly unlawful searches of his property by BATF agents. Scherer claims that a newly discovered incident, the warrantless observation of his property in late June or early July, 1972, from a post somewhere northwest of his house, amounted to an unlawful search. With respect to two warrantless entries of his property by an agent in September, 1972, Scherer asserts that he has recently discovered that the agent, before entering, was aware that two Thompson submachine guns were in his barn. The effect of this awareness, Scherer argues, is to make the searches unlawful under the Fourth Amendment. Further, Scherer contends that the evidence used against him at trial carried the taint of these illegal searches, since the June-July search produced information which led to the September entries, which in turn led to the issuance of the search warrant pursuant to which evidence was seized and used to convict him. Therefore, he argues, his conviction must be vacated.
The chain of events which Scherer traces between the searches and the seizure of evidence under the warrant is weak. While he asserts that the June-July observation provided information which led to
*181
the September searches, he does not point out, and apparently does not know, what that information was. In fact, it appears from other evidence, that the information relayed by an informant after his dealings with Scherer was the underlying reason for the September searches. Moreover, this court held on direct appeal that probable cause existed to support the eventual issuance of the search warrant apart from information gained in the September entries. The information gained in September was merely corroborating.
Scherer I,
Scherer cites the deposition of a BATF agent as evidence of government intrusion on his property. 6 The district court noted that
it appears that the agents set up an observation post ... which was west-northwest of Mr. Scherer’s house. The agents seem to have been east of an open field.... No distances are given .. . but the deposition reveals that a railroad track lies west-northwest of the house, and the agents were a considerable distance from the railroad tracks.
Scherer III,
74 CR 99 at 9-10 (emphasis added). The Fourth Amendment protects against warrantless intrusions where an individual has a “legitimate expectation of privacy.”
Rakas v. Illinois,
Moreover, Scherer does not show that the observation produced any information useful to or used by the government in prosecuting him. Although Scherer asserts that the agents were looking for “things ... in the house or right around the house” from this observation post, he fails to show what, if anything, was observed. The results of the surveillance were not incorporated in the agent’s affidavit supporting the issuance of the September warrant.
Scherer’s assertions regarding this incident amount to little more than speculation. The mere allegation that the observation might have been in violation of the Fourth Amendment is not enough to show that Scherer is entitled to the extraordinary relief he seeks here. His new evidence fails to demonstrate that his conviction amounted to “a complete miscarriage of justice.”
Hedman,
VI.
Scherer also contends that a BATF agent violated his Fourth Amendment rights when the agent came onto his property on two occasions in September, posing as a cousin of the informer he accompanied. Scherer had invited the informer and his “cousin Jim Moore” onto the property to build duck blinds. On both occasions, once the two were on Scherer’s farm, they were given broad permission by Scherer’s wife to look around the grounds and in the barn for wood to build the duck blinds.
*182
The agents were on Scherer’s property by his express permission. A government agent may obtain an invitation onto property by misrepresenting his identity, and if invited, does not need probable cause - nor warrant to enter so long as he does not exceed the scope of his invitation.
Lewis v. United States,
VI.
For the foregoing reasons, the judgment of the district court is affirmed.
Notes
. 18 U.S.C. § 922(m).
. The district court in Scherer II did not consider the alleged new evidence and we refused to consider it on appeal because the evidence was not presented to the district court. Scherer II, No. 79-1342, slip op. at 5 (7th Cir. May 21, 1980).
. The district court found that Fed.R.Crim.P. 35 was inapplicable because the Rule has been construed “[t]o permit correction at any time of an illegal sentence, not to re-examine errors occurring at the trial or other proceedings prior to the imposition of sentence.”
Hill v. United States,
. The district court found 28 U.S.C. § 2255 inapplicable because Scherer failed to satisfy the custody requirement. He has completed both his sentence and his period of probation.
Ansourian v. United States,
. Other discrepancies that Scherer cites are:
1) On the second page of the newly discovered documents, the date crossed out of the statement is September 25, 1972.
2) A time was changed from 12:00 to 11:30.
3) Facts contained in one document are omitted in the other documents and vice versa.
. The only relevant testimony cited to us is:
Q: When you say in a fixed position, you just took up a position then on the grounds somewhere, is that it?
A: Yes.
. The Seventh Circuit has held that the Fourth Amendment protects the home and the area within 75 feet of the home.
United States ex rel. Saiken v. Bensinger,
